Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2021-12-27 16:46 ca2c3443

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split(data/finsupp/order): Split off data.finsupp.basic (#11045) This moves all order instances about finsupp from data.finsupp.basic and data.finsupp.lattice to a new file data.finsupp.order. I'm crediting

Estimated changes

deleted theorem finsupp.add_eq_zero_iff
deleted theorem finsupp.coe_tsub
deleted theorem finsupp.le_def
deleted theorem finsupp.le_iff'
deleted theorem finsupp.le_iff
deleted theorem finsupp.lt_wf
deleted theorem finsupp.single_le_iff
deleted theorem finsupp.single_tsub
deleted theorem finsupp.sum_id_lt_of_lt
deleted theorem finsupp.support_tsub
deleted theorem finsupp.tsub_apply