Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2018-03-05 18:18 5193194e

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feat(order/filter): reorder filter theory; add filter_upwards tactic

Estimated changes

modified theorem filter.Inter_mem_sets
modified theorem filter.filter.ext
modified theorem filter.filter_eq_iff
modified theorem filter.inter_mem_sets
modified theorem filter.mem_inf_sets_of_left
added theorem filter.mp_sets
modified theorem filter.univ_mem_sets'
modified theorem filter.univ_mem_sets