Recent content by cumin

two things that are each equal to something else are equal to each other. If x-7=y and 3=y, then x-7=3.

A binary operator assigns a member of a set to an ordered pair of elements from the set. The binary operator "+" assigns a real number to a pair of real numbers; 5.2 + 4.1 = 10.1. It is like a computer language method or function with two arguments. Plus(5.2, 4.1) --> 10.1. Negation is a...