Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2022-08-24 12:36 839b92fe

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feat(data/nat/enat): new file (#16217) Define enat := with_top nat, use notation.

Estimated changes

added theorem enat.add_one_le_iff
added theorem enat.add_one_le_of_lt
added theorem enat.coe_add
added theorem enat.coe_mul
added theorem enat.coe_one
added theorem enat.coe_sub
added theorem enat.coe_zero
added theorem enat.le_of_lt_add_one
added theorem enat.nat_induction
added theorem enat.one_le_iff_pos
added theorem enat.succ_def
added def enat.to_nat
added def enat