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| -rw-r--r-- | isa/Example-Xsym.ML | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/isa/Example-Xsym.ML b/isa/Example-Xsym.ML new file mode 100644 index 00000000..46f93938 --- /dev/null +++ b/isa/Example-Xsym.ML @@ -0,0 +1,15 @@ +(* + Example proof script for Isabelle Proof General. + + $Id$ + + Just a version of Example.ML using XSymbol +*) + +Goal "A \\<and> B \\<longrightarrow> B \\<and> A"; +by (rtac impI 1); +by (etac conjE 1); +by (rtac conjI 1); +by (assume_tac 1); +by (assume_tac 1); +qed "and_comms"; |