Disjunctive Syllogism - Proof

Proof

Proposition Derivation
Given
Given
Material implication
Modus ponens
Proposition Derivation
Given
Given
Material implication
Transposition
Modus ponens

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Famous quotes containing the word proof:

    a meek humble Man of modest sense,
    Who preaching peace does practice continence;
    Whose pious life’s a proof he does believe,
    Mysterious truths, which no Man can conceive.
    John Wilmot, 2d Earl Of Rochester (1647–1680)

    It comes to pass oft that a terrible oath, with a swaggering accent sharply twanged off, gives manhood more approbation than ever proof itself would have earned him.
    William Shakespeare (1564–1616)

    If some books are deemed most baneful and their sale forbid, how, then, with deadlier facts, not dreams of doting men? Those whom books will hurt will not be proof against events. Events, not books, should be forbid.
    Herman Melville (1819–1891)