Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2019-12-13 18:10 bb7d4c98

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chore(data/set/lattice): drop Union_eq_sUnion_range and Inter_eq_sInter_range (#1800)

  • chore(data/set/lattice): drop Union_eq_sUnion_range and Inter_eq_sInter_range Two reasons:
  • we already have sUnion_range and sInter_range, no need to repeat ourselves;
  • proofs used wrong universes.
  • Try to fix compile

Estimated changes