Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Logic A proposition derived by negating and permuting the terms of another, equivalent proposition; for example, All not-Y is not-X is the contrapositive of All X is Y.
Century Dictionary and Cyclopedia
- Of, pertaining to, or produced by contraposition: as, contrapositive propositions; contrapositive conversion.
- n. In logic, a contrapositive proposition.
Wiktionary
- n. logic the inverse of the converse of a given proposition
Examples
“I'm leaving out some steps here (which students always appropriately resent), but the above is all of a piece with something called the "contrapositive".”
“The '' 'contrapositive' '' of a statement of the form "A implies B" is the [[logic]] ally equivalent statement "not-B implies not-A.”
“We can also see this in the contrapositive: having more than one sexual partner is by definition nonmonogamous.”
“A natural experiment that is the contrapositive to Korea would be Vietnam.”
The Ratios, Bryan Caplan | EconLog | Library of Economics and Liberty
“The contrapositive of this is that if you are not a U.S. national (e.g. you lose your nationality through the operation of the law) then it follows you are also not a citizen.”
The Volokh Conspiracy » Peter Spiro on Lieberman’s Citizenship-Stripping Legislation
“(If Messiahs are in the habit of denying themselves, surely the contrapositive is true.)”
“But mythological creatures also performed a second, often contrapositive, argumentative function; commentators who rejected evolution regularly did so by dismissing these creatures.”
“If Messiahs are in the habit of denying themselves, surely the contrapositive is true.”
“The contrapositive of this is that if you are not a U.S. national e.g. you lose your nationality through the operation of the law then it follows you are also not a citizen.”
The Volokh Conspiracy » Peter Spiro on Lieberman’s Citizenship-Stripping Legislation
“Why not look as well to where such contrapositive energy has always been found in literature: as a function of literary representing per se, the writing itself?”
Lists
These user-created lists contain the word ‘contrapositive’.
-
Your Mission: Find theTraps
List of words that contain the letter string *trap*. Some are obvious and apparent, such as trapezoid, while others are a bit less apparent, such as contrapuntist, ultraphysical, and intraperitoneal.
trapezoid, contrapuntist, wentletrap, allotetraploid, bootstrap, caltrap, unstrap, Trappist, ultraphysical, trapline, Trapt, autotetraploidy and 195 more...
-
words to know
proselytising, proprioception, qualia, indelibly, eristic, mellifluous, perspicacious, concilience, inure, tendentiousness, topos, parochial and 118 more...
-
rememberers
prolix, ageusia, animadversion, anodyne, antic, arabesque, beadle, brachymetropia, colophon, desquamation, diaphoresis, diegesis and 3251 more...
-
kfury's Words
zeugma, plangent, prosopagnosia, claptrap, mechanism, turgid, alliteration, craptacular, saturnine, hemidemisemiquaver, octothorpe, rowel and 8 more...
-
Academic Writing 1
Words for students of introductory logic
definition, genus, syllogism, contrapositive, enthymeme, obverse, converse, affirmative, negative, universal, particular, counterexample and 5 more...
-
logic
words used in Logic
contrapositive, inverse, converse, contradiction, modus tollens, modus ponens, rebus
Tweets
Looking for tweets for contrapositive.
Comments
No comments yet...
Log in or sign up to get involved in the conversation. It's quick and easy.