[Merged by Bors] - feat(Order/PartialSups): golf, add lemmas #8138
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- Add `partialSups_iff_forall` and `partialSups_le_iff`. - Use them to golf some proofs. - Drop `partialSups_apply_mono` because it's just `(partialSups f).mono`. - Add `disjoint_partialSups_left` and `disjoint_partialSups_right`.
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- Add `partialSups_iff_forall` and `partialSups_le_iff`. - Use them to golf some proofs. - Drop `partialSups_apply_mono` because it's just `(partialSups f).mono`. - Add `disjoint_partialSups_left` and `disjoint_partialSups_right`. Motivated by `partialSups_le_iff` from the Mandelbrot Set Connectedness Project. Co-authored-by: @girving
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partialSups_iff_forallandpartialSups_le_iff.partialSups_apply_monobecause it's just
(partialSups f).mono.disjoint_partialSups_leftanddisjoint_partialSups_right.Motivated by
partialSups_le_ifffrom the Mandelbrot Set Connectedness Project.
Co-authored-by: @girving