Free magmas #1459
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Free magmas #1459
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merging nix upgrade to 2.7.0; faster typechecking for all
merging no-postfix-projections PR into branches
merging upstream commits
merging upstream commits
merging upstream commits
pulling up to date
merging upstream
merging upstream
…tor out an eq-htpy-hom-Magma block in morphisms-magmas
…e definition for extension-of-map-labeled-full-binary-tree-Magma...
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As there's that annoying identification that wasn't judgementally refl, I'm characterizing identifications of labeled full binary trees to give a path doing the trick. Unlabeled full binary trees are characterized and labeled ones are mostly so; a few goals to complete the structure identity principle application remain. This PR likely won't end up including the free wild monoid characterization as promised; this feels a large enough scope as is. |
…g up to do, three goals remain, but I think it was the right decision
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Introducing free magmas, using the infrastructure of full binary trees. Assuming all magmas in sight are sets, we may also prove their universal property.