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Trivially reduce 1[*]&&f = f and 1[*]|f = 1[*].

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* src/ltlast/bunop.hh (one_star): New static method building 1[*].
* src/ltlast/bunop.cc (bunop::~bunop, bunop::instance_count): Adjust.
* src/ltlast/multop.cc: Implement the trivial rewriting.
* src/ltlast/multop.hh, doc/tl/tl.tex: Document it.
* src/ltltest/equals.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-24 17:22:23 +02:00
parent 5bea6e4950
commit e06b3b7974
6 changed files with 39 additions and 6 deletions
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2
src/ltltest/equals.test
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@ -149,6 +149,8 @@ run 0 ../equals '{{a;b}:b:c:d*:e:f}!' '{{a;b}:{b && c }:d[*]:{e && f}}!'
run 0 ../equals '{a:b:c}|->!Xb' '!(a&&b&&c) | !Xb'
run 0 ../equals '{a:b:c*}|->!Xb' '{(a&&b):c*}|-> !Xb'
run 0 ../equals '{a&b&c*}|->!Xb' '{(a&&b)&c*}|-> !Xb'
run 0 ../equals '{[*]&&a&&[*]}!' 'a'
run 0 ../equals '{[*]||a||[*]}!' '{[*]}!'
run 0 ../equals '{0&{f;g*}}!' '0'
run 0 ../equals '{1&{f;g*}}!' '{f;g*}!'
# 1 should not be removed in the following two formulae