doc-src/TutorialI/Misc/arith3.thy
author wenzelm
Thu, 29 Jun 2000 22:31:29 +0200
changeset 9194 a57987e0250b
parent 8745 13b32661dde4
permissions -rw-r--r--
added add_method;

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