Disjunction Elimination - Proof

Proof

Proposition Derivation
Given
Given
Given
Material implication
Hypothetical syllogism
Conjunction
Law of Excluded Middle
Constructive dilemma
Tautology

Read more about this topic:  Disjunction Elimination

Famous quotes containing the word proof:

    When children feel good about themselves, it’s like a snowball rolling downhill. They are continually able to recognize and integrate new proof of their value as they grow and mature.
    Stephanie Martson (20th century)

    The moment a man begins to talk about technique that’s proof that he is fresh out of ideas.
    Raymond Chandler (1888–1959)

    O, popular applause! what heart of man
    Is proof against thy sweet, seducing charms?
    William Cowper (1731–1800)