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doc-src/TutorialI/Misc/arith3.thy
author paulson
Wed, 18 Oct 2000 12:30:59 +0200
changeset 10241 e0428c2778f1
parent 8745 13b32661dde4
permissions -rw-r--r--
wellfounded -> well-founded

(*<*)
theory arith3 = Main:;
(*>*)
lemma "n*n = n \\<Longrightarrow> n=0 \\<or> n=1";
(**)(*<*)
oops;
end
(*>*)
isabelle