Posted by **Kate** on Saturday, January 2, 2010 at 5:35pm.

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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