Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2019-10-18 19:41 05102ecb

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chore(category_theory): using simps (#1500)

  • chore(category_theory): using simps
  • more simps
  • remove simp lemma
  • revertings overlapping @[simps]

Estimated changes

modified def category_theory.cones
deleted theorem category_theory.cones_map
deleted theorem category_theory.cones_obj