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May
22
awarded  Disciplined
Apr
19
awarded  Editor
Apr
19
revised When asked to show that $X=Y$, is it reasonable to manipulate $X$ without thinking about $Y$?
added 4 characters in body
Apr
19
comment When asked to show that $X=Y$, is it reasonable to manipulate $X$ without thinking about $Y$?
Say you're given some axioms and some basic identities and you're asked to prove the validity of some equation. For example, the triangle inequality. The first approach I described would be to start with $|a + b|$ and to apply those axioms and identities to generate a more elaborate equation. The result is I'm trying to prove is $|a + b| \leq |a| + |b|$.
Apr
19
awarded  Student
Apr
19
asked When asked to show that $X=Y$, is it reasonable to manipulate $X$ without thinking about $Y$?