Hello folks,
Say I have a function fx such that for any x = fx y, then x uniquely
determines y (so in principle there exists an inverse function fy such
that y = fy x).
Now I seem to remember there was a special word used to describe
functions such as fx, or (fx,fy) pairs of functions, but I can't
remember what that word is :-). Can someone remind me?
Also, what would you call a pair (x,y), such that x = fx y and y = fy x?
I guess this concept could be extended to triples and n-tuples
generally. For example (x,y,z) constrained such that..
x = fx y z
y = fy z x
z = fz x y
Thanks for any enlightenment
--
Adrian Hey
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