doc-src/TutorialI/Misc/arith3.thy
author wenzelm
Mon, 13 Nov 2000 21:59:49 +0100
changeset 10463 474263d29057
parent 8745 13b32661dde4
permissions -rw-r--r--
tuned IsarThy.theorem_i;

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