doc-src/TutorialI/Misc/arith1.thy

renamed // to / (which is what we want anyway) to avoid clash with the new
use of // for quotienting

(*<*)
theory arith1 = Main:;
(*>*)
lemma "\\<lbrakk> \\<not> m < n; m < n+1 \\<rbrakk> \\<Longrightarrow> m = n";
(**)(*<*)
apply(auto).;
end
(*>*)