What is the meaning of "formal" in math-speak? – math.stackexchange.com 19:20 Posted by Unknown No Comments I have been encountering the word "formal" in several math books, and I don't understand what it means in context. For example, Hatcher describes n-chains as "finite formal sums" on p. 105 and p. ... from Hot Questions - Stack Exchange OnStackOverflow via Blogspot Share this Unknown
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