diff -r 19849d258890 -r 8018173a7979 src/CCL/fix.thy --- 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.,%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