Answer:
a theorem is seen to be a technical statement, especially in mathematics, that you can prove by showing that it has been correctly developed from facts → proof
Explanation:
According to the wikipedia, A theorem is a general proposition not self-evident but proved by a chain of reasoning; a truth established by means of accepted truths.
According to the Longman dictionary, a theorem is seen to be a technical statement, especially in mathematics, that you can prove by showing that it has been correctly developed from facts.