Hypothetical Syllogism - Proof

Proof

Proposition Derivation
Given
Given
Transposition
Law of the Excluded Middle
Conjunction
Constructive dilemma
Material implication

Read more about this topic:  Hypothetical Syllogism

Famous quotes containing the word proof:

    There is no better proof of a man’s being truly good than his desiring to be constantly under the observation of good men.
    François, Duc De La Rochefoucauld (1613–1680)

    The fact that several men were able to become infatuated with that latrine is truly the proof of the decline of the men of this century.
    Charles Baudelaire (1821–1867)

    He who has never failed somewhere, that man can not be great. Failure is the true test of greatness. And if it be said, that continual success is a proof that a man wisely knows his powers,—it is only to be added, that, in that case, he knows them to be small.
    Herman Melville (1819–1891)