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Commit 2021-11-15 10:57 ca61dbff

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feat(order/sup_indep): Finite supremum independence (#9867) This defines supremum independence of indexed finsets.

Estimated changes

Modified src/data/finset/lattice.lean

added theorem finset.disjoint_sup_left

added theorem finset.disjoint_sup_right

Created src/order/sup_indep.lean

added theorem complete_lattice.independent_iff_sup_indep

added theorem finset.sup_indep.attach

added theorem finset.sup_indep.bUnion

added theorem finset.sup_indep.pairwise_disjoint

added theorem finset.sup_indep.subset

added theorem finset.sup_indep.sup

added def finset.sup_indep

added theorem finset.sup_indep_empty

added theorem finset.sup_indep_iff_pairwise_disjoint

added theorem finset.sup_indep_singleton