Are either A1 or B1 the results of a calculation? It could that although it
is showing as zero it is not a true zero. Try formatting the cells to show
15 decimal places and see it they remain zero.

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"jayklmno" wrote in message
...
I have a formula in a cell that returns a boolean value...

=IF(A1=B2,FALSE,TRUE)

A1=0
B2 =0

I must be going insane, cause it's returning False. Shouldn't zero be
greater than or equal to itself?