first stage in tidying up Real and Hyperreal.
Factor cancellation simprocs
inverse #0 = #0
simprules for division
corrected ambigous syntax definitions in Hyperreal
(*<*)
theory fakenat = Main:;
(*>*)
text{*\noindent
The type \isaindexbold{nat}\index{*0|bold}\index{*Suc|bold} of natural
numbers is predefined and behaves like
*}
datatype nat = 0 | Suc nat
(*<*)
end
(*>*)