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https://seasawher.github.io/mathlib4-tactics/#revert 情報量が足りない
revert が有用になるような例を知らない
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The proof of 2.3.6 begins by stating a claim and then proving it before moving onto to proving 2.3.6. It probably makes sense to move this claim to it's own lemma and should tidy the proof of both.
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## Option
At this point in the text, reading linearly, universes have not yet been introduced and I could not figure out what this syntax meant (the `: Type`) and what its purpose is.
```
induc…
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I'm interested in interop for the lean theorem prover. Rust would be a great candidate for that since lean's memory model is not extremely far from rust's with borrowing, no gc, etc.
Having access …
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I'm going to show an example first and then explain what I mean.
Input file:
load "examples.mm"
tactics tactic ( +V )
{ match +V
$ ( &W2 &W3 ) $ ?
}
proof ~abbi
{ match goal
$ ( …
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i'm looking at it for julia and lua. i'm familiar with parsing and moderately experienced with haskell (very familiar with the underlying ideas, i work in theorem proving)
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While looking at the geometry proofs involving congruence, I found some omissions involving CPCTC.
The problem is that the proof `cgrcgra` ("Triangle congruence implies angle congruence.") only han…
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I've found no math formulae in PhD thesis available in your wiki - have you did any math theory elaboration? Any theorem proving XIA is efficient and complete network stack? ... any network models use…
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https://github.com/leanprover/theorem_proving_in_lean4/blob/ee6aeb4f1db92c3fed2121944bdd1d4871d6d851/propositions_and_proofs.md?plain=1#L36-L38
It has brought some confusion https://stackoverflow.c…
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### Prerequisites
Please put an X between the brackets as you perform the following steps:
* [x] Check that your issue is not already filed:
https://github.com/leanprover/lean4/issues
* …
TwoFX updated
1 month ago