Math
posted by Kate .
what is the difference between an equal sign with another line above it and an equal sign with a triangle above it.
I was alway taught that the three lines symbolized identity
and that the equal sign with a traingle above it signified definition
when would you use the three lines instead of the equal sign with a traingle above it
right now I see them as being interchangeable which I think might be wrong...
thanks
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