Contraposition

C2 16+

Pronunciation: /ˌkɑntrəpəˈzɪʃən/

Definitions of contraposition

noun the act or process of placing in contrast or opposition

Example Sentences

A1 Contraposition means the relationship between two propositions where the truth of one requires the falsity of the other.

A2 In logic, contraposition is a method of inference that involves switching the subject and predicate of a proposition and negating both.

B1 Understanding contraposition is essential in formal logic as it helps in determining the validity of arguments.

B2 The concept of contraposition is often used in mathematical proofs to establish the equivalence of statements.

C1 Contraposition is a fundamental principle in symbolic logic that allows for the transformation of logical statements while preserving their truth value.

C2 Proficient logicians are adept at employing contraposition effectively to analyze and construct complex logical arguments.

Examples of contraposition in a Sentence

formal In logic, contraposition is a valid form of argument that involves switching the subject and predicate of a conditional statement.

informal Contraposition basically means flipping the parts of a 'if-then' statement around to make a new statement.

slang Contraposition is like doing a switcheroo with the parts of a sentence to make a different sentence.

figurative Just like how contraposition in logic involves rearranging statements, sometimes in life we need to change our perspective to see things differently.

Grammatical Forms of contraposition

past tense

contraposed

plural

contrapositions

comparative

more contrapositive

superlative

most contrapositive

present tense

contraposes

future tense

will contrapose

perfect tense

have contraposed

continuous tense

is contraposing

singular

contraposition

positive degree

contrapositive

infinitive

to contrapose

gerund

contraposing

participle

contraposing

Origin and Evolution of contraposition

First Known Use: 1250 year
Language of Origin: Latin
Story behind the word: The word 'contraposition' originated from Latin, specifically from the word 'contrapositio' which means a placing opposite or against.
Evolution of the word: Over time, 'contraposition' has evolved to refer to a logical relationship between two propositions where the subject and predicate of each proposition are interchanged.