This question was asked on AskSage here:
http://ask.sagemath.org/question/2853/testing-inequalities-in-sage
So I have these commands to test the triangle inequality:
var('a','b')
eqn1=abs(a+b)
eqn2=abs(a)+abs(b)
bool(eqn1<=eqn2)
I had expected the result to be True, but it returned false.
In general, what other information should I provide to sage e.g. via
assume(...) in order for Sage to correctly evaluate an inequality?
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