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Question in abstract algebra
In group theory, a branch of abstract algebra, the Whitehead problem is the following question: Is every abelian group A with Ext1(A, Z) = 0 a free abelian
Whitehead_problem
British mathematician (1904–1960)
connection with algebraic K-theory. The Whitehead product is an operation in homotopy theory. The Whitehead problem on abelian groups was solved (as an independence
J._H._C._Whitehead
Yes-or-no question that cannot ever be solved by a computer
generalized by Rice's theorem. In 1973, Saharon Shelah showed the Whitehead problem in group theory is undecidable, in the first sense of the term, in
Undecidable_problem
Commutative group (mathematics)
the Whitehead problem: are all Whitehead groups of infinite order also free abelian groups? In the 1970s, Saharon Shelah proved that the Whitehead problem
Abelian_group
Whitehead's algorithm is a mathematical algorithm in group theory for solving the automorphic equivalence problem in the finite rank free group Fn. The
Whitehead's_algorithm
Anti-surface ship torpedo
Whitehead torpedo was the first self-propelled or "locomotive" torpedo ever developed. It was perfected in 1866 by British engineer Robert Whitehead from
Whitehead_torpedo
English mathematician and philosopher (1861–1947)
Alfred North Whitehead (15 February 1861 – 30 December 1947) was an English mathematician and philosopher. He created the philosophical school known as
Alfred_North_Whitehead
Limitative results in mathematical logic
hypothesis cannot be proved from ZFC. Shelah (1974) showed that the Whitehead problem in group theory is undecidable, in the first sense of the term, in
Gödel's incompleteness theorems
Gödel's_incompleteness_theorems
Combinatorial principle
Shelah showed that the diamond principle solves the Whitehead problem by implying that every Whitehead group is free. List of statements independent of ZFC
Diamond_principle
Topics referred to by the same term
Whitehead group in mathematics may mean: A group W with Ext(W, Z)=0; see Whitehead problem For a ring, the Whitehead group Wh(A) of a ring A, equal to
Whitehead_group
question of H. Friedman. In 1973, Saharon Shelah showed that the Whitehead problem ("is every abelian group A with Ext1(A, Z) = 0 a free abelian group
List of statements independent of ZFC
List_of_statements_independent_of_ZFC
In mathematics, a module that has a basis
A famous example is the Whitehead problem, which asks whether a Whitehead group is free or not. As it turns out, the problem is independent of ZFC. Given
Free_module
Israeli mathematician
group for which every proper subgroup is countable. He showed that Whitehead's problem is independent of ZFC. He gave the first primitive recursive upper
Saharon_Shelah
Standard system of axiomatic set theory
statements independent of ZFC. These include the continuum hypothesis, the Whitehead problem, and the normal Moore space conjecture. Some of these conjectures
Zermelo–Fraenkel_set_theory
Information which one can express but not use
effective problem-solving in realistic situations. The phenomenon of inert knowledge was first described in 1929 by Alfred North Whitehead: "[T]heoretical
Inert_knowledge
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer
List of unsolved problems in mathematics
List_of_unsolved_problems_in_mathematics
Australian video game programmer
Christian Whitehead, also known as The Taxman, is an Australian video game programmer and designer. He is most recognized for his work creating updated
Christian_Whitehead
Philosophical concept
In the philosophy of mind, the hard problem of consciousness (or simply the hard problem) is to explain how and why organisms have qualia, phenomenal consciousness
Hard_problem_of_consciousness
English actor (born 1939)
Geoffrey Whitehead (born 1 October 1939) is an English actor. He has appeared in a range of television, film and radio roles. Whitehead was born on 1 October
Geoffrey_Whitehead
Axiom in the mathematical field of set theory
MA + ¬CH implies that there exists a Whitehead group that is not free; Shelah used this to show that the Whitehead problem is independent of ZFC. Martin's
Martin's_axiom
View that mind is a ubiquitous feature of reality
and, more controversially, to Thales, Plato, Schopenhauer, Alfred North Whitehead, and Bertrand Russell. Views described as panpsychism were advocated by
Panpsychism
American gridiron football player (born 1992)
Rodney Darnell "Lucky" Whitehead Jr. (born June 2, 1992) is an American former professional football wide receiver and kick returner who played for three
Lucky_Whitehead
Problem in computer science
c2:HaltingProblem Alfred North Whitehead and Bertrand Russell, Principia Mathematica to *56, Cambridge at the University Press, 1962. Re: the problem of paradoxes
Halting_problem
mathematics, the Kneser–Tits problem, introduced by Tits (1964) based on a suggestion by Martin Kneser, asks whether the Whitehead group W(G,K) of a semisimple
Kneser–Tits_conjecture
finite simple groups Herzog–Schönheim conjecture Subset sum problem Whitehead problem Word problem for groups Amenable group Capable group Commensurability
List_of_group_theory_topics
19/20th-century German-American aviator
Gustave Albin Whitehead (born Gustav Albin Weisskopf; 1 January 1874 – 10 October 1927) was a German–American aviation pioneer. Between 1897 and 1915
Gustave_Whitehead
3-volume treatise on mathematics, 1910–1913
of mathematics written by the mathematician–philosophers Alfred North Whitehead and Bertrand Russell and published in 1910, 1912, and 1913. In 1925–1927
Principia_Mathematica
Homological algebra is the study of homological functors
cohomology Galois cohomology Lie algebra cohomology Sheaf cohomology Whitehead problem Homological conjectures in commutative algebra This list page primarily
List of homological algebra topics
List_of_homological_algebra_topics
Overview of claims to the first powered airplane flight
adopted a bill naming Gustave Whitehead as the first to fly, a claim he made in 1901, later challenged by profound problems of documentation and contradictory
Claims to the first airplane flight
Claims_to_the_first_airplane_flight
Self-propelled underwater weapon
Fulton's use of the term to describe his stationary mines, and later Robert Whitehead's naming of the first self-propelled torpedo. Torpedo-like weapons were
Torpedo
Intersection of Set Theory and General Topology
¬CH implies that there exists a Whitehead group that is not free; Shelah used this to show that the Whitehead problem is independent of ZFC. Forcing is
Set-theoretic_topology
Open question in philosophy of how abstract minds interact with physical bodies
The mind–body problem is a philosophical problem concerning the relationship between thought and consciousness in the human mind and body. It addresses
Mind–body_problem
Unanswered question in the study of consciousness
binding problem is the problem of how objects, background, and abstract or emotional features are combined into a single experience. The binding problem refers
Binding_problem
American poet
Ron Whitehead is an American poet, author and activist. Whitehead was born on a farm in Kentucky, but traveled to the University of Louisville and Oxford
Ron_Whitehead
Homotopy invariant of maps between n-spheres
contains 2 Z {\displaystyle 2\mathbb {Z} } . Moreover, the image of the Whitehead product of identity maps equals 2, i. e. h ( [ i n , i n ] ) = 2 {\displaystyle
Hopf_invariant
American basketball player (born 1984)
in basketball. His combination of speed and size often created matchup problems for opposing teams because James was capable of charging past larger defenders
LeBron_James
German mathematician (1862–1943)
mathematics. His approach differed from the later "foundationalist" Russell–Whitehead or "encyclopedist" Nicolas Bourbaki, and from his contemporary Giuseppe
David_Hilbert
Two interlinked loops with five structural crossings
In knot theory, the Whitehead link, named for J. H. C. Whitehead, is one of the most basic links. It can be drawn as an alternating link with five crossings
Whitehead_link
Rhodesian politician (1905–1971)
Sir Edgar Cuthbert Fremantle Whitehead, KCMG OBE (8 February 1905 – 22 September 1971) was a Rhodesian politician and statesman who served as Prime Minister
Edgar_Whitehead
American novelist (1882-1932)
Henry St. Clair Whitehead (March 5, 1882 – November 23, 1932) was an American Episcopal minister and author of horror, some non fiction and fantasy fiction
Henry_S._Whitehead
Species of bird endemic to New Zealand
The whitehead (Mohoua albicilla; Māori: pōpokotea) is a species of small (15 cm in length, 18.5/14.5 g.) passerine bird endemic to New Zealand. It is
Whitehead_(bird)
Determining whether a knot is the unknot
Unsolved problem in mathematics Can unknots be recognized in polynomial time? More unsolved problems in mathematics In mathematics, the unknotting problem is
Unknotting_problem
Whitehead conjecture (also known as the Whitehead asphericity conjecture) is a claim in algebraic topology. It was formulated by J. H. C. Whitehead in
Whitehead_conjecture
Greek philosopher
Christian, Jewish and Islamic philosophy. In modern times, Alfred North Whitehead said: "the safest general characterization of the European philosophical
Plato
American escapologist and stuntman (1874–1926)
22, 1926, speculated that Houdini's death was caused by Jocelyn Gordon Whitehead, who repeatedly struck Houdini's abdomen. The accounts of the witnesses
Harry_Houdini
American black metal solo project
Leviathan is an American black metal solo project that started in 1998 by Jef Whitehead under the pseudonym Wrest. On all Leviathan albums, Wrest records all
Leviathan_(musical_project)
President of the United States (2017–2021; since 2025)
at Debate". The New York Times. Retrieved September 25, 2024. Perry, Whitehead & Grubbs 2021, p. 229, Christian nationalist ideology was among the strongest
Donald_Trump
HTTP extension for collaborative editing
began in 1996 when Jim Whitehead worked with the World Wide Web Consortium (W3C) to host two meetings to discuss the problem of distributed authoring
WebDAV
treatment of the problem of evil written from the perspective of 'process' philosophical and theological thought." Griffin builds on Whitehead's view that God
Religious responses to the problem of evil
Religious_responses_to_the_problem_of_evil
Branch of philosophy
mind–body problem is a paradigmatic issue in philosophy of mind, although a number of other issues are addressed, such as the hard problem of consciousness
Philosophy_of_mind
Mathematical concept
isomorphism problem. It is notable that this means that the isomorphism problem, orbit problems (in particular the conjugacy problem) and Whitehead's problem are
Hyperbolic_group
Rage comic character
Internet culture at its finest". The Next Web. Retrieved June 13, 2020. Whitehead, Thomas (March 4, 2015). "Copyright Owner of 'Trollface' Image Explains
Trollface
Impossible task in computing
p. 3ff. Whitehead, Alfred North; Russell, Bertrand, Principia Mathematica to *56, Cambridge at the University Press, 1962. Re: the problem of paradoxes
Entscheidungsproblem
Lecturer in the History of Maths at the Open University Vicky Neale, Whitehead Lecturer at the Mathematical Institute and Balliol College, Oxford 2 October
List of In Our Time programmes
List_of_In_Our_Time_programmes
Largest species of toothed whale
ISBN 978-0-7006-1772-2. Zbl 0945.14001. Whitehead 2003, p. 343. Whitehead 2003, p. 122. Whitehead 2003, p. 123. Whitehead 2003, p. 185. Mammals in the Seas
Sperm_whale
Subfield of automated reasoning and mathematical logic
and Whitehead in their influential Principia Mathematica, first published 1910–1913, and with a revised second edition in 1927. Russell and Whitehead thought
Automated_theorem_proving
Retirement for Age February 15, 1939 2227 8050 Exemption of Robert F. Whitehead from Compulsory Retirement for Age February 15, 1939 2228 8051 Limiting
List of executive actions by Franklin D. Roosevelt
List_of_executive_actions_by_Franklin_D._Roosevelt
American documentary filmmaker (born 1949)
Martin Smith (born January 28, 1949) is an American producer, writer, director and correspondent. Smith has produced dozens of nationally broadcast documentaries
Martin_Smith_(documentarian)
Problem in game theory
Paise Restaurant Problem for extending it from binary choice (go to the bar or stay home) to multiple options for each player. Whitehead, Duncan (2008-09-17)
El_Farol_Bar_problem
English footballer
Dean Whitehead (born 12 January 1982) is an English football coach and former professional footballer. A midfielder who occasionally played as a right-back
Dean_Whitehead
Theorem in geometric topology
way he believed his question would be answered. In the 1930s, J. H. C. Whitehead claimed a proof but then retracted it. In the process, he discovered some
Poincaré_conjecture
Group for scholarship on Alfred North Whitehead
The Whitehead Research Project (WRP) is dedicated to research and scholarship on the texts, philosophy, and life of mathematician and philosopher Alfred
Whitehead_Research_Project
for the door". The Guardian. ISSN 0261-3077. Retrieved 11 June 2026. Whitehead, Jamie; Smith, Alex. "Armed Forces Minister Al Carns quits hours after
2026 Labour Party leadership crisis
2026_Labour_Party_leadership_crisis
Fictional character from Sherlock Holmes stories
Germany: Friedrich Perthes and I.H. Besser., as described in Teets, Donald; Whitehead, Karen (1999). "The Discovery of Ceres: How Gauss Became Famous". Mathematics
Professor_Moriarty
1956 computer program written by Allen Newell, Herbert A. Simon and Cliff Shaw
Logic Theorist proved 38 of the first 52 theorems in chapter two of Whitehead and Bertrand Russell's Principia Mathematica, and found new and shorter
Logic_Theorist
1969 film by Alan Rafkin
Henry Jones, Edgar Buchanan, and Gary Collins. The Reverend Samuel D. Whitehead, former Marine, bricklayer, and recent seminary graduate, is ecstatic
Angel_in_My_Pocket
Logical principle
principle was stated as a theorem of propositional logic by Russell and Whitehead in Principia Mathematica as: ✸2.1 ~p ∨ p From the late 1800s through the
Law_of_excluded_middle
English explorer and naturalist (1860–1899)
John Whitehead (30 June 1860 – 2 June 1899) was an English explorer, naturalist and professional collector of natural history specimens in Southeast Asia
John_Whitehead_(explorer)
1996 film by Arlene Sanford
led to the disappearance of Dr. Whitehead's son Gilligan and Carol's first husband, a professor. In Dr. Whitehead's words, "The Minnow is lost", and
A_Very_Brady_Sequel
Most populous city in the United States
York City (4th ed.). New York: Crown Publishers. ISBN 978-0-8129-3107-5. Whitehead, Colson (2003). The Colossus of New York: A City in 13 Parts. Doubleday
New_York_City
Video game and media franchise
iOS and Android devices. After Australian programmer Christian "Taxman" Whitehead developed a version of Sonic CD for modern consoles in 2011, he collaborated
Sonic_the_Hedgehog
2010 video game
games of the seventh generation of video game consoles. Eurogamer's Dan Whitehead hoped the eighth generation of consoles would offer "similarly powerful
Red_Dead_Redemption
Skin condition characterized by pimples
hair follicles. Typical features of the condition include blackheads or whiteheads, pimples, oily skin, and possible scarring. It primarily affects skin
Acne
Austrian–British philosopher of science (1902–1994)
of problem solving. Popper presents falsifiability as both an ideal and as an important principle in a practical method of effective human problem solving;
Karl_Popper
Forming something new and somehow valuable
Perspectives on Creativity. In 1927, mathematician and philosopher Alfred North Whitehead gave the Gifford Lectures at the University of Edinburgh, later published
Creativity
Tyrie Remain 42.7% South East England 49.4% 50.6% Southampton Test Alan Whitehead Remain 8.7% South East England 49.4% 50.6% South Antrim Danny Kinahan
Results of the 2016 United Kingdom European Union membership referendum by constituency
Results_of_the_2016_United_Kingdom_European_Union_membership_referendum_by_constituency
British racing driver (1914–1958)
Peter Nield Whitehead (12 November 1914 – 21 September 1958) was a British racing driver. He was born in Menston, Yorkshire and was killed in an accident
Peter Whitehead (racing driver)
Peter_Whitehead_(racing_driver)
2013 video game
Archived from the original on August 16, 2025. Retrieved January 10, 2026. Whitehead, Thomas (May 23, 2014). "Nintendo Confirms New 'Sea Green' 2DS Model"
Tomodachi_Life
Austro-Hungarian Navy officer
the problem of setting off explosive charges remotely below a ship's waterline, this being far more effective than above-water bombardment. Whitehead then
Giovanni_Luppis
American actor (born 1955)
1984 Riptide Taxi Driver Episode: "The Hardcase" Falcon Crest "Buzz" Whitehead Episode: "Strangers" 1985 V Isaac Henley Episode: "Breakout" 1986 The
Xander_Berkeley
Christian church based in Rome
the original on 1 April 2019. Retrieved 11 October 2017. "Kenneth D. Whitehead". ewtn.com. Archived from the original on 20 November 2023. Retrieved
Catholic_Church
Multi-sport event
Archived from the original on 29 January 2024. Retrieved 29 January 2024. Whitehead, Jacob (22 March 2024). "The push for athletes to compete on drugs backed
Enhanced_Games
American geneticist (1949–2016)
folding problem within a family of molecules known as heat-shock proteins, and prions. Lindquist was a member and former director of the Whitehead Institute
Susan_Lindquist
1960 article by Eugene Wigner
in describing nature. Albert Einstein and the philosopher Alfred North Whitehead had previously thought that the success of abstract mathematics in physical
The Unreasonable Effectiveness of Mathematics in the Natural Sciences
The_Unreasonable_Effectiveness_of_Mathematics_in_the_Natural_Sciences
War actions of the German military officer
2016. Benishay 2016. Cohen 2015. Shepherd 2016, p. 357. Elam, Shraga; Whitehead, Dennis (29 March 2007). "Rauff vs. the Yishuv". Haaretz Daily Newspaper
Erwin Rommel in the Second World War
Erwin_Rommel_in_the_Second_World_War
British engineer and businessman (born 1952)
club". BBC Sport. 26 August 2019. Retrieved 27 August 2019. Bosher, Jacob Whitehead and Luke. "Chelsea takeover bid by Ratcliffe rejected". The Athletic.
Jim_Ratcliffe
Douglas Rushkoff, author of Cyberia; the English mathematician Alfred North Whitehead said it is the business of the future to be dangerous; Anne Friedberg;
List_of_Equinox_episodes
Video game character
Wonder". Thrilling Tales of Old Video Games. Retrieved March 9, 2025. Whitehead, Dan (November 9, 2007). "Page 2 | The History of Mario". Eurogamer.net
Princess_Daisy
Belgian philosopher of science and scientist (born 1949)
Penser avec Whitehead, Paris, Le Seuil, « L’ordre philosophique », 2002. A critique of psychoanalytic reason: hypnosis as a scientific problem from Lavoisier
Isabelle_Stengers
incompatibility (help) Whitehead, Henry (1924). Indian Problems in Religion, Education, Politics. Constable. Anderson, George; Whitehead, Henry (1932). Christian
Henry_Whitehead_(bishop)
Political party in the United States
white evangelical Protestant affiliation, and higher church attendance. Whitehead, Andrew L.; Perry, Samuel L. (2020). Taking America Back for God. doi:10
Republican Party (United States)
Republican_Party_(United_States)
2007 novel by Mark Peter Hughes
They gradually open up to one another about their problems: Stella thinks she's stupid and has problems with her parents, Wen's father will be marrying
Lemonade_Mouth
1993 video game
part of Sonic Gems Collection in 2005. A remake, developed by Christian Whitehead using the Retro Engine, was released for various platforms in 2011 and
Sonic_CD
Appointments made by King Charles III
Corporate Economic Governance, particularly in Hong Kong. Professor Maurice Whitehead. Director of Heritage Collections and Research Fellow, Venerable English
2025_Birthday_Honours
English mathematician and philosopher (1872–1970)
Principia Mathematica (with Alfred North Whitehead). 3 vols. Cambridge: Cambridge University Press 1912. The Problems of Philosophy. London: Williams and Norgate
Bertrand_Russell
Hypothetical physical concept
gravity. Finding such a theory of everything is one of the major unsolved problems in physics. Numerous popular books apply the words "theory of everything"
Theory_of_everything
List of television series episodes
murder, she makes a terrible accusation of her own. 164 20 "Velma Ogden-Whitehead" October 28, 2012 (2012-10-28) A mother schemes to save the expense of
List_of_Snapped_episodes
Use of mathematics as a philosophical framework
7–78. doi:10.1017/CBO9780511805042.004. ISBN 978-0-521-24594-4. Whitehead, Whitehead, Alfred North and Bertrand Russell (1963). Principia Mathematica
Mathematicism
1940 British operation during World War II
1983, p. 76. Whitehead 1995, p. 379. Whitehead 1995, p. 380. Whitehead 1999, p. 15. Whitehead 1995, p. 15. Whitehead 1999, p. 17. Whitehead 1995, pp. 380–384
Invasion_of_Iceland
Problem in finite group theory
word problem", J. Austral. Math. Soc., 18: 41–53, doi:10.1017/s1446788700019108 Boone, W. W.; Rogers Jr, H. (1966), "On a problem of J. H. C. Whitehead and
Word_problem_for_groups
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
Boy/Male
Arabic, Indian, Muslim
Problem Solver
Boy/Male
Hindu, Indian
Problem
Girl/Female
Muslim/Islamic
Away from all Problems
Girl/Female
Bengali, Indian
Eternity; Problem Solver
Girl/Female
Indian, Telugu
Destroyer of Problems
Surname or Lastname
English
English : metonymic occupational name for a baker or seller of white bread, from Old English hwīt ‘white’ or hwǣte ‘wheat’ + brēad ‘bread’. White bread, considered the best bread, was made from wheat flour.In some cases, perhaps a translation of the German cognate Weisbrot.
Surname or Lastname
English and Scottish
English and Scottish : nickname for someone with fair or prematurely white hair, from Middle English whit ‘white’ + heved ‘head’.Irish (Connacht) : erroneous translation of Ó Ceanndubháin ‘descendant of the little black-headed one’ (see Canavan), as if from Gaelic ceann ‘head’ + bán ‘white’.Translated form of German Weisshaupt (see Weishaupt) or Weisskopf (see Weiskopf).
Boy/Male
Indian, Tamil
People with this Name are Preferably Intelligent and Very Generous; Highly Knowledgeable in Problem Solving Skills
Boy/Male
Muslim
Problem solver
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
Girl/Female
Latin
Announces.
Boy/Male
Spanish
Adventurous.
Surname or Lastname
English
English : variant of Dunwell 1.
Girl/Female
Hindu, Indian
Awesome
Boy/Male
Bengali, Hindu, Indian, Kannada, Punjabi, Sikh, Telugu
Gift; Times; As in a Many Times
Surname or Lastname
English
English : from Old English brēmel, braemel ‘bramble’, ‘blackberry bush’, hence a topographic name for someone who lived by a blackberry thicket or possibly a nickname for a prickly person.English : variant of Bramhall.
Boy/Male
English
Broad; wide.
Boy/Male
Hindu
Intimate, Close to heart
Boy/Male
Indian, Latin, Sanskrit
Luminescent; Moon
Boy/Male
Arabic, Muslim, Pashtun
Famous
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
WHITEHEAD PROBLEM
n.
The blue-winged snow goose.
v. t.
To have just and adequate ideas of; to apprehended the meaning or intention of; to have knowledge of; to comprehend; to know; as, to understand a problem in Euclid; to understand a proposition or a declaration; the court understands the advocate or his argument; to understand the sacred oracles; to understand a nod or a wink.
n.
To cause to stick; to bring to a stand; to pose; to puzzle; as, to stick one with a hard problem.
n.
One who proposes problems.
n.
The common beam tree of England (Pyrus Aria); -- so called from the white, woolly under surface of the leaves.
n.
A fatty, solid substance, produced by bees, and employed by them in the construction of their comb; -- usually called beeswax. It is first excreted, from a row of pouches along their sides, in the form of scales, which, being masticated and mixed with saliva, become whitened and tenacious. Its natural color is pale or dull yellow.
n.
An old man; a graybeard.
imp. & p. p.
of Whiten
v. t.
To propose problems.
n.
The whiteweed (Chrysanthemum Leucanthemum), the plant commonly called daisy in North America; -- called also oxeye daisy. See Whiteweed.
n.
A certain function relating to a system of forces and their points of application, -- first used by Clausius in the investigation of problems in molecular physics.
n.
The surf scoter.
n.
A perennial composite herb (Chrysanthemum Leucanthemum) with conspicuous white rays and a yellow disk, a common weed in grass lands and pastures; -- called also oxeye daisy.
a.
Having the nature of a problem; not shown in fact; questionable; uncertain; unsettled; doubtful.
n.
A problem of more than usual difficulty added to another on an examination paper.
v. i.
To become white or whiter; to be whitened or blanched by excluding the light of the sun, as, plants.
superl.
White mixed with black, as the color of pepper and salt, or of ashes, or of hair whitened by age; sometimes, a dark mixed color; as, the soft gray eye of a dove.
a.
Alt. of Problematical
a.
Questionable; equivocal; indefinite; problematical.
a.
Whitened; make white.