• In logic and mathematics, contraposition, or transposition, refers to the inference of going from a conditional statement into its logically equivalent...
    41 KB (6,175 words) - 03:40, 27 February 2025
  • argument: affirming the consequent and denying the antecedent. See also contraposition and proof by contrapositive. The form of a modus tollens argument is...
    13 KB (1,847 words) - 09:18, 3 May 2025
  • Thumbnail for Argument from ignorance
    technical issues, or some kind of oversight from the hiring team. Contraposition is a logically valid rule of inference that allows the creation of a...
    11 KB (1,321 words) - 04:26, 5 January 2025
  • Thumbnail for Mathematical proof
    is often used instead of "proof by mathematical induction". Proof by contraposition infers the statement "if p then q" by establishing the logically equivalent...
    38 KB (4,780 words) - 23:44, 1 February 2025
  • a categorical statement. Note that this contraposition in the traditional logic is not same to contraposition (also called transposition) in the modern...
    22 KB (2,492 words) - 18:47, 17 August 2024
  • above except [symmetry]. Clearly [symmetry] holds for ∃A while e.g. [contraposition] fails. A semantic interpretation of conditional quantifiers involves...
    3 KB (248 words) - 09:32, 8 February 2022
  • for the second problem, one exists for the first problem as well. By contraposition, if no efficient algorithm exists for the first problem, none exists...
    11 KB (1,472 words) - 23:39, 6 June 2023
  • its codomain; that is, x1 ≠ x2 implies f(x1) ≠ f(x2) (equivalently by contraposition, f(x1) = f(x2) implies x1 = x2). In other words, every element of the...
    17 KB (2,575 words) - 11:13, 28 April 2025
  • for lunch, then Sam also cannot have eaten an orange for lunch (by contraposition). However, merely saying that Sam did not eat an orange for lunch provides...
    6 KB (772 words) - 13:48, 17 March 2025
  • C=ND(N\otimes N)} In the classical propositional calculus, the law of contraposition p → q ≡ ¬q → ¬p is proved because the equivalence holds for all the...
    22 KB (3,789 words) - 20:54, 20 June 2024
  • Thumbnail for Shakira
    comes with music co-written by Luis F. Ochoa and includes an intriguing contraposition of rock guitars and Latin brass, utilized among other seemingly disparate...
    330 KB (31,642 words) - 19:30, 20 May 2025
  • smaller series, Σ a n {\displaystyle \Sigma a_{n}} must converge. By contraposition, if the red series Σ a n {\displaystyle \Sigma a_{n}} is proven to diverge...
    11 KB (1,966 words) - 21:16, 14 April 2025
  • Thumbnail for Reductio ad absurdum
    as logic and mathematics. Appeal to ridicule Argument from fallacy Contraposition List of Latin phrases Mathematical proof Prasangika Slippery slope Strawman...
    12 KB (1,253 words) - 00:22, 10 May 2025
  • non-P". "All S are not P" (E form) becomes "Some non-S are not non-P". Contraposition Converse (logic) Obversion Transposition (logic) Taylor, Courtney K...
    3 KB (487 words) - 00:56, 15 April 2024
  • Thumbnail for Plato
    ever-changing waters flowing through it, and all things exist as a contraposition of opposites, while Parmenides adopted an altogether contrary vision...
    51 KB (5,882 words) - 21:01, 15 May 2025
  • Thumbnail for Fermat's Last Theorem
    conjecture might also simultaneously prove Fermat's Last Theorem. By contraposition, a disproof or refutation of Fermat's Last Theorem would disprove the...
    104 KB (11,739 words) - 07:16, 3 May 2025
  • category theory, the term conglomerate is applied to arbitrary sets as a contraposition to the distinguished sets that are elements of a Grothendieck universe...
    8 KB (855 words) - 13:18, 19 September 2024
  • Syntactically, (1) and (2) are derivable from each other via the rules of contraposition and double negation. Semantically, (1) and (2) are true in exactly the...
    6 KB (751 words) - 03:54, 11 March 2025
  • Thumbnail for Raven paradox
    can be expressed as: If something is a raven, then it is black. Via contraposition, this statement is equivalent to: (2) If something is not black, then...
    57 KB (8,319 words) - 17:43, 8 May 2025
  • Thumbnail for Cao Cao
    treacherous tyrant who serves as a nemesis to Liu Bei, often depicted in contraposition as a hero trying to revive the declining Han dynasty. During the Ming...
    188 KB (28,188 words) - 15:42, 6 May 2025
  • who adopted a laissez-faire system he termed anarchistic socialism in contraposition to state socialism. This tradition has been recently associated with...
    89 KB (10,419 words) - 10:37, 16 May 2025
  • and P cannot be swapped in All S are P. Philosophy portal Aristotle Contraposition Inverse (logic) Logical connective Obversion Term logic Transposition...
    9 KB (1,077 words) - 09:54, 25 March 2025
  • Thumbnail for V. K. Krishna Menon
    the final hours, leaving Soviet Foreign Minister Dmitri Shepilov in contraposition. Why is that we have never heard voices in connection with the freedom...
    69 KB (6,874 words) - 18:41, 18 May 2025
  • existence or non-existence. Argument from ignorance Argument from silence Contraposition Probatio diabolica Proof by exhaustion "Absence of Evidence Is Not Evidence...
    12 KB (1,501 words) - 09:19, 9 March 2025
  • Thumbnail for Treviso
    cities, including Castelfranco Veneto (founded by the Trevigiani in contraposition to Padua), had become attractive to neighbouring powers, including the...
    45 KB (4,432 words) - 01:43, 25 April 2025
  • then not-B implies not-A", and vice versa), which expresses the law of contraposition. For instance, "If it's bound, it is a book; if it's not a book, it's...
    23 KB (3,114 words) - 06:31, 30 March 2025
  • Thumbnail for Negation
    (grammatical polarity) Ampheck Apophasis Binary opposition Bitwise NOT Contraposition Cyclic negation Negation as failure NOT gate Plato's beard Square of...
    19 KB (2,236 words) - 02:31, 5 January 2025
  • the Aventine Hill into their stronghold and their own jurisdiction in contraposition to the Roman state. The Plebeian Council, under the leadership of the...
    6 KB (915 words) - 23:57, 10 January 2025
  • Raa^{*}a} ( A → ¬ A ) → ¬ A {\displaystyle (A\to \lnot A)\to \lnot A} Contraposition R a b c ⇒ R a c ∗ b ∗ {\displaystyle Rabc\Rightarrow Rac^{*}b^{*}} (...
    22 KB (3,947 words) - 10:45, 10 March 2025
  • implies that the variance is constant for all treatments. Therefore, by contraposition, a necessary condition for unit-treatment additivity is that the variance...
    56 KB (7,645 words) - 21:36, 7 April 2025