(reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd
a logical proof of a proposition by showing that its negation leads to a contradiction
(reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd; or a proff of a proposition by showing that its negation leads to a contradiction
(reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd; or a proof of a proposition by showing that its negation leads to a contradiction
