Add LemmaNoDuplicatesCardinalityOfSet #19
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robin-aws
reviewed
Oct 3, 2021
robin-aws
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Oct 3, 2021
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Thanks @gancherj! I had no idea someone else would jump on this so quickly or I would have assigned it to myself, since I was playing around with it too and came up with an alternative version myself (#20) :) Yours is simpler so I'm happy to accept it instead, although I will update and merge my version since the multiset-related lemmas seem useful independently.
You'll just have to update Seq.dfy.expect to expect 70 verified to get the CI to pass.
added 2 commits
October 3, 2021 18:14
robin-aws
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Oct 4, 2021
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Lemma to fix #18