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Re: Two-column proofs
Posted:
Jan 24, 1995 7:41 AM
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In my college calculus class (honors), we started from very basic
principles. For the first one or two homework assignments we had to
do things like prove that -(-a) = a. So, when I sat down to my
homework, I carefully divided the paper into two columns and proceeded
as I had in my high school geometry class. (Proofs of such "obvious"
facts actually seem easier to do by such a rigid method.)
Needless to say, the poor grader/TA was beside himself when he saw
this! He was fresh out of grad. school and had never seen a two
column proof in his life.
Heidi B.
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