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| author | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:54:35 +0000 |
|---|---|---|
| committer | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:54:35 +0000 |
| commit | e9e80fc389365e24d4300d7d5390c7d833a96c50 (patch) | |
| tree | f0b58473adaa670bd8fc52ada419d8cad470ee03 /old-examples/logic/LogicEng.gf | |
| parent | b96b36f43de3e2f8b58d5f539daa6f6d47f25870 (diff) | |
changed names of resource-1.3; added a note on homepage on release
Diffstat (limited to 'old-examples/logic/LogicEng.gf')
| -rw-r--r-- | old-examples/logic/LogicEng.gf | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/old-examples/logic/LogicEng.gf b/old-examples/logic/LogicEng.gf new file mode 100644 index 000000000..18f466fa7 --- /dev/null +++ b/old-examples/logic/LogicEng.gf @@ -0,0 +1,23 @@ +--# -path=.:mathematical:present:resource-1.0/api:prelude + +concrete LogicEng of Logic = LogicI with + (LexTheory = LexTheoryEng), + (Prooftext = ProoftextEng), + (Grammar = GrammarEng), + (Symbolic = SymbolicEng), + (Symbol = SymbolEng), + (Combinators = CombinatorsEng), + (Constructors = ConstructorsEng), + ; + +{- +ImplI Abs Abs (\h -> DisjE Abs Abs Abs (DisjIr Abs Abs (Hypoth Abs h)) +(\x -> Hypoth Abs x) (\y -> Hypoth Abs y)) + +assume that we have a contradiction . by the hypothesis we have a contradiction . +a fortiori we have a contradiction or we have a contradiction . +we have two cases. assume that we have a contradiction . +by the hypothesis we have a contradiction . assume that we have a contradiction . +by the hypothesis we have a contradiction . therefore we have a contradiction . +therefore if we have a contradiction then we have a contradiction . +-} |
