On Mon, Jun 29, 2020 at 1:53 AM Stephen J. Turnbull <turnbull.stephen.fw@u.tsukuba.ac.jp> wrote:
But if it turns out that somebody *wants* to check "2 is 2.0",
this .add_unique can serve both purposes.

can it though? (or should it?) -- the fact is that it was decided the 2 and 2.0 are equivalent as members of a set (which makes great sense, there are they SAME number, and the difference is an implementation detail), so the answer to:

2.0 in {2}
2 in {2.0}

is True

I've lost track, but the answer to

should always be the same as

for the same set.


Christopher Barker, PhD

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