--- a/src/CCL/fix.thy Sat Apr 05 16:00:00 2003 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,26 +0,0 @@
-(* Title: CCL/Lazy/fix.thy
- ID: $Id$
- Author: Martin Coen
- Copyright 1993 University of Cambridge
-
-Tentative attempt at including fixed point induction.
-Justified by Smith.
-*)
-
-Fix = Type +
-
-consts
-
- idgen :: "[i]=>i"
- INCL :: "[i=>o]=>o"
-
-rules
-
- idgen_def
- "idgen(f) == lam t.case(t,true,false,%x y.<f`x, f`y>,%u.lam x.f ` u(x))"
-
- INCL_def "INCL(%x.P(x)) == (ALL f.(ALL n:Nat.P(f^n`bot)) --> P(fix(f)))"
- po_INCL "INCL(%x.a(x) [= b(x))"
- INCL_subst "INCL(P) ==> INCL(%x.P((g::i=>i)(x)))"
-
-end