Can we prove that a proposition is true by disproving its contradictory?
A) Yes, because the proposition must be true if its contradictory is false.
B) Yes, but the proof would lack certainty.
C) No, but we could prove it by disproving its contrary.
D) No, but we could prove it by disproving its subcontrary.
E) No, because both the proposition and its contradictory could be false.
Correct Answer:
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