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2 votes
1 answer
40 views

Rewriting/Applying unidirectional morphisms in Coq

Link to Code Gist I have the following definition ...
Agnishom Chattopadhyay's user avatar
1 vote
1 answer
74 views

How do I enable this kind of rewriting?

Link to Code Gist Given two extensionally equal sets, s1 ≡ s2, I want to be able to obtain a ∈ s2 from ...
Agnishom Chattopadhyay's user avatar
4 votes
3 answers
444 views

Rewrite with definitional equality and dependent types

In Coq, there are some terms that are equal by definition, but there's not an easy way to replace one value with the other inside a proof. The two ways that I know that work in general are to use the ...
sudgy's user avatar
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