Tutorial/Minimal.thy
author Christian Urban <urbanc@in.tum.de>
Tue, 07 Jun 2011 10:40:06 +0100
changeset 2822 23befefc6e73
parent 2686 52e1e98edb34
child 3132 87eca760dcba
permissions -rw-r--r--
cleaned ups a bit the examples with the invariant framework; exported nominal_function_config datatype into separate structure and file

theory Minimal
imports "Nominal2"
begin

atom_decl name

nominal_datatype lam =
  Var "name"
| App "lam" "lam"
| Lam x::"name" l::"lam"  bind x in l ("Lam [_]. _" [100, 100] 100)



lemma alpha_test:
  shows "Lam [x]. (Var x) = Lam [y]. (Var y)"
  by (simp add: lam.eq_iff Abs1_eq_iff lam.fresh fresh_at_base)

end