src/Sequents/ILL/ILL_predlog.thy
changeset 6252 935f183bf406
child 14854 61bdf2ae4dc5
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/Sequents/ILL/ILL_predlog.thy	Fri Feb 05 21:14:17 1999 +0100
     1.3 @@ -0,0 +1,42 @@
     1.4 +(* 
     1.5 +    File:	 /Nfs/toton/usr20/sk/isa_files/ll/NEW/pred_log.thy
     1.6 +    Theory Name: pred_log
     1.7 +    Logic Image: HOL
     1.8 +*)
     1.9 +
    1.10 +ILL_predlog  =  ILL +
    1.11 +
    1.12 +types
    1.13 +
    1.14 +    plf
    1.15 +    
    1.16 +arities
    1.17 +
    1.18 +    plf :: logic
    1.19 +    
    1.20 +consts
    1.21 +
    1.22 +  "&"   :: "[plf,plf] => plf"   (infixr 35)
    1.23 +  "|"   :: "[plf,plf] => plf"   (infixr 35)
    1.24 +  ">"   :: "[plf,plf] => plf"   (infixr 35)
    1.25 +  "="   :: "[plf,plf] => plf"   (infixr 35)
    1.26 +  "@NG" :: "plf => plf"   ("- _ " [50] 55)
    1.27 +  ff    :: "plf"
    1.28 +  
    1.29 +  PL    :: "plf => o"      ("[* / _ / *]" [] 100)
    1.30 +
    1.31 +
    1.32 +translations
    1.33 +
    1.34 +  "[* A & B *]" == "[*A*] && [*B*]" 
    1.35 +  "[* A | B *]" == "![*A*] ++ ![*B*]"
    1.36 +  "[* - A *]"   == "[*A > ff*]"
    1.37 +  "[* ff *]"    == "0"
    1.38 +  "[* A = B *]" => "[* (A > B) & (B > A) *]"
    1.39 +  
    1.40 +  "[* A > B *]" == "![*A*] -o [*B*]"
    1.41 +  
    1.42 +(* another translations for linear implication:
    1.43 +  "[* A > B *]" == "!([*A*] -o [*B*])" *)
    1.44 +
    1.45 +end