fact: Definition re_ind leq weq := mk_ops regex_unit (fun _ _ => lattice.mk_ops regex' leq weq r_pls r_pls id r_zer r_zer) (fun _ _ _ => r_dot) (fun _ => r_one) (fun _ => r_itr) (fun _ => r_str) (fun _ _ => assert_false r_str) (fun _ _ _ => assert_false r_dot) (fun _ _ _ => assert_false r_dot).
imports: syntax kleene boolean lang lset sums normalisation