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From: | William Sit |
Subject: | Re: [Axiom-developer] Complex exponentiation and 0 |
Date: | Mon, 21 Jun 2004 19:03:27 -0400 |
"Page, Bill" wrote: > > No. The morphisms in the Cardinal numbers category are > functions. There is no function whose codomain is 0 unless > the domain is 0. See > > http://planetmath.org/encyclopedia/Function.html > > There is exactly one function whose domain is 0 for each > codomain. So we do have x^0 = 1 and 0^y = 0 for y \ne 0. You are right. I stand corrected. Thanks. William
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