lean4-htt/tests/lean/run/simpArith1.lean
Leonardo de Moura 2a67a49f31
chore: simp_arith has been deprecated (#7043)
This PR deprecates the tactics `simp_arith`, `simp_arith!`,
`simp_all_arith` and `simp_all_arith!`. Users can just use the `+arith`
option.
2025-02-12 03:55:45 +00:00

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Text

theorem ex1 : a + b < b + 1 + a + c := by
simp (config := { arith := true })
theorem ex2 : a + b < b + 1 + a + c := by
simp +arith
theorem ex3 : a + (fun x => x) b < b + 1 + a + c := by
simp +arith
theorem ex5 (h : a + d + b > b + 1 + (a + (c + c) + d)) : False := by
simp +arith at h
#print ex5
theorem ex6 (p : Nat → Prop) (h : p (a + 1 + a + 2 + b)) : p (2*a + b + 3) := by
simp +arith at h
assumption
#print ex6