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Add trivial identity {b}=b and !{b}=!b for any Boolean formula b.

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* src/ltlast/unop.cc: Perform the simplification.
* src/ltlast/unop.hh, doc/tl/tl.tex: Document it.
* src/ltltest/equals.test: Adjust test cases.
This commit is contained in:
Alexandre Duret-Lutz 2011-11-07 11:30:27 +01:00
parent 98f67973eb
commit 77d704ea9e
4 changed files with 28 additions and 18 deletions
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8
src/ltltest/equals.test
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@ -179,9 +179,9 @@ run 0 ../equals '{b[=0to$]}' '{*}'
run 0 ../equals '{0[->10..100];b}' '0'
run 0 ../equals '{0[->1..];b}' '0'
run 0 ../equals '{0[->0,100];b}' '{b}'
run 0 ../equals '{0[->0..$];b}' '{b}'
run 0 ../equals '{1[->0];b}' '{b}'
run 0 ../equals '{0[->0,100];b}' 'b'
run 0 ../equals '{0[->0..$];b}' 'b'
run 0 ../equals '!{1[->0];b}' '!b'
run 0 ../equals '{1[->10,20];b}' '{[*10..20];b}'
run 0 ../equals '{1[->..];b}' '{[*1..];b}'
run 0 ../equals '{{a&!c}[->0];b}' '{b}'
run 0 ../equals '{{a&!c}[->0];b}' 'b'