1
let
2
fun tac ss = resolve_tac(prems_of_ss ss) ORELSE' asm_simp_tac ss;
3
val ss = set_prove_tac(HOL_ss addsimps [Suc_lessD],tac)
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in prove_goal Nat.thy "!!x. Suc(Suc(Suc(x)))<y ==> x<y"
5
(fn _ => [asm_simp_tac ss 1])
6
end;