Disjunctive Syllogism - Proof

Proof

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

Read more about this topic:  Disjunctive Syllogism

Famous quotes containing the word proof:

    Sculpture and painting are very justly called liberal arts; a lively and strong imagination, together with a just observation, being absolutely necessary to excel in either; which, in my opinion, is by no means the case of music, though called a liberal art, and now in Italy placed even above the other two—a proof of the decline of that country.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)

    To cease to admire is a proof of deterioration.
    Charles Horton Cooley (1864–1929)

    The thing with Catholicism, the same as all religions, is that it teaches what should be, which seems rather incorrect. This is “what should be.” Now, if you’re taught to live up to a “what should be” that never existed—only an occult superstition, no proof of this “should be”Mthen you can sit on a jury and indict easily, you can cast the first stone, you can burn Adolf Eichmann, like that!
    Lenny Bruce (1925–1966)