/usr/share/hol88-2.02.19940316/contrib/CSP/stop.ml is in hol88-contrib-source 2.02.19940316-35.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | % Trace Semantics for the process STOP. %
% %
% FILE : stop.ml %
% %
% READS FILES : process_ty.th %
% LOADS LIBRARIES : sets, string %
% WRITES FILES : stop.th %
% %
% AUTHOR : Albert J Camilleri %
% AFFILIATION : Hewlett-Packard Laboratories, Bristol %
% DATE : 89.03.15 %
% REVISED : 91.10.01 %
load_library `sets`;;
load_library `string`;;
new_theory `stop`;;
new_parent `process_ty`;;
load_theorem `list_lib1` `APPEND_EQ_NIL`;;
load_theorem `star` `NIL_IN_STAR`;;
map (load_definition `process_ty`) [`IS_PROCESS`; `ALPHA_DEF`; `TRACES_DEF`];;
load_theorem `process_ty` `PROCESS_LEMMA6`;;
loadf `rules_and_tacs`;;
let IS_PROCESS_STOP =
prove_thm
(`IS_PROCESS_STOP`,
"! A. IS_PROCESS (A, {[]})",
REWRITE_TAC [IS_PROCESS; SUBSET_DEF; IN_SING; APPEND_EQ_NIL] THEN
REPEAT STRIP_TAC THEN
ASM_REWRITE_TAC [NIL_IN_STAR]);;
let STOP_LEMMA1 = REWRITE_RULE [PROCESS_LEMMA6] IS_PROCESS_STOP;;
let DEST_PROCESS =
TAC_PROOF
(([],
"?f. !x. ((ALPHA (f x)) = x) /\ ((TRACES (f x)) = {[]})"),
EXISTS_TAC "\x.ABS_process (x, {[]})" THEN
BETA_TAC THEN
REWRITE_TAC [ALPHA_DEF; TRACES_DEF; STOP_LEMMA1]);;
let STOP = new_specification `STOP` [(`constant`,`STOP`)] DEST_PROCESS;;
map2 (\(x,y). save_thm (x, y))
([`ALPHA_STOP`; `TRACES_STOP`],
map GEN_ALL (CONJUNCTS (SPEC_ALL STOP)));;
close_theory ();;
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