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removed debug prerr_endline
[helm.git] / helm / gTopLevel / esempi / and_implies_or.cic
1 alias and  /Coq/Init/Logic/Conjunction/and.ind#1/1
2 alias conj /Coq/Init/Logic/Conjunction/and.ind#1/1/1
3
4 alias or        /Coq/Init/Logic/Disjunction/or.ind#1/1
5 alias or_introl /Coq/Init/Logic/Disjunction/or.ind#1/1/1
6 alias or_intror /Coq/Init/Logic/Disjunction/or.ind#1/1/2
7
8 \A:Prop.
9 \B:Prop.
10 \H:(and A B).
11  Case (H : and ; (or A B)) { \a:A.\b:B.(or_introl A B a) }