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Add a convert_to_provable parameter to parse_formula #86

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merged 28 commits into from
Apr 26, 2022

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tirix
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@tirix tirix commented Apr 19, 2022

To allow to create directly a formula with provable type code.

This also includes changes to the Formula API which allow to:

  • accumulate substitutions when performing unfication : this allows to unify several formulas, e.g. when there essential hypotheses,
  • complete missing substitutions : this allows introducing work variables, e.g. for C in the case of ( A + C ) = ( B + C ) |- A = B ,
  • iterate through a Formula's labels

@tirix tirix marked this pull request as ready for review April 24, 2022 14:53
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tirix commented Apr 26, 2022

Thanks for your remarks @digama0 !
If there's nothing else I'd like to merge this PR and move on!

@digama0 digama0 merged commit 6b4f618 into metamath:main Apr 26, 2022
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