This PR adds the inverse of a dyadic rational, at a given precision, and characterising lemmas. Also cleans up various parts of the `Int.DivMod` and `Rat` APIs, and proves some characterising lemmas about `Rat.toDyadic`. --------- Co-authored-by: Rob23oba <152706811+Rob23oba@users.noreply.github.com> |
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| Basic.lean | ||
| Instances.lean | ||
| Inv.lean | ||
| Round.lean | ||