src/HOL/IMP/Com.thy
author paulson <lp15@cam.ac.uk>
Mon May 23 15:33:24 2016 +0100 (2016-05-23)
changeset 63114 27afe7af7379
parent 58889 5b7a9633cfa8
permissions -rw-r--r--
Lots of new material for multivariate analysis
     1 section "IMP --- A Simple Imperative Language"
     2 
     3 theory Com imports BExp begin
     4 
     5 datatype
     6   com = SKIP 
     7       | Assign vname aexp       ("_ ::= _" [1000, 61] 61)
     8       | Seq    com  com         ("_;;/ _"  [60, 61] 60)
     9       | If     bexp com com     ("(IF _/ THEN _/ ELSE _)"  [0, 0, 61] 61)
    10       | While  bexp com         ("(WHILE _/ DO _)"  [0, 61] 61)
    11 
    12 end