Definitions for contraposition
ˌkɒn trə pəˈzɪʃ əncon·tra·po·si·tion

WiktionaryRate this definition:0.0 / 0 votes

1. contrapositionnoun

   The statement of the form "if not Q then not P", given the statement "if P then Q".

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Contrapositionnoun

   Etymology: from contra and position.

   1. A placing over against.2. In logick. See Conversion.

Webster DictionaryRate this definition:1.0 / 1 vote

1. Contrapositionnoun

   a placing over against; opposite position

2. Contrapositionnoun

   a so-called immediate inference which consists in denying the original subject of the contradictory predicate; e.g.: Every S is P; therefore, no Not-P is S

3. Etymology: [Pref. contra- + position: cf. f. conterposition.]

WikidataRate this definition:0.0 / 0 votes

1. Contraposition

   In logic, contraposition is a law, which says that a conditional statement is logically equivalent to its contrapositive. The contrapositive of the statement has its antecedent and consequent inverted and flipped: the contrapositive of is thus . For instance, the proposition "All bats are mammals" can be restated as the conditional "If something is a bat, then it is a mammal". Now, the law says that statement is identical to the contrapositive "If something is not a mammal, then it is not a bat." The contrapositive can be compared with three other relationships between conditional statements: ⁕Inversion: "If something is not a bat, then it is not a mammal." Unlike the contrapositive, the inverse's truth value is not at all dependent on whether or not the original proposition was true, as evidenced here. The inverse here is clearly not true. ⁕Conversion: "If something is a mammal, then it is a bat." The converse is actually the contrapositive of the inverse and so always has the same truth value as the inverse, which is not necessarily the same as that of the original proposition. ⁕Negation: "There exists a bat that is not a mammal. " If the negation is true, the original proposition is untrue. Here, of course, the negation is untrue.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Contraposition

   kon′tra-po-zish′un, n. opposition, contrast: (logic) an immediate inference, which consists in denying the original subject of the contradictory of the original predicate.—adj. Con′tra-pos′itive.

How to pronounce contraposition?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say contraposition in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of contraposition in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of contraposition in Pythagorean Numerology is: 8

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Contraposition
2. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=contraposition
3. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/contraposition
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=contraposition
5. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=contraposition