Re: [isabelle] problem with class and sulocale declarations

> I tried apply (subst a), but when using on "x = y" it only replace x to
> 1, and
> I did not know how to replace y with 1. The second application of subst
> will
> change again 1 to 1.

apply (subst (1) a)
apply (subst (2) a)

Hope this helps,



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