I'm working on an exam, and have a solid proof for one of the problems, but it's reliant on a number of theorems left exercises in the textbook which were not assigned as coursework. What, if any convention is there for using those results in later proofs?
What is the convention for using results of theorems left as exercise in the text?
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soft-question
proof-writing
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0you should probably prove it, and since you asked your instructor, s/he probably assumes you havent proven it (else you would have just included a proof) and s/he will make you prove it. – 2011-12-16