alleryWhat is a specialised theorem used mainly to prove another theorem called?
AAxiom
BConjecture
CCorollary
DLemma
Answer & Solution
Correct answer: D. Lemma
1. Some theorems exist mainly as stepping stones.
2. A theorem used mainly to prove another theorem is a lemma.
3. An axiom is assumed and a conjecture is unproven.
_Source: Wikipedia, Mathematics, Symbolic notation and terminology_
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