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Commit 2022-01-27 01:40 a6ace8c1

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feat(set_theory/ordinal_arithmetic): Proved sup_eq_lsub_iff_lt_sup (#11660)

Estimated changes

Modified src/set_theory/ordinal_arithmetic.lean

deleted theorem ordinal.bsup_eq_blsub

added theorem ordinal.bsup_eq_blsub_iff_lt_bsup

added theorem ordinal.bsup_eq_blsub_iff_succ

deleted theorem ordinal.sup_eq_lsub

added theorem ordinal.sup_eq_lsub_iff_lt_sup

added theorem ordinal.sup_eq_lsub_iff_succ