On 19/02/10 19:05 , Lu Zhao wrote:

> I have a goal looks like the following

> `f x = f y`

> I want to reduce it to

> `x = y`

> How can I do this, if it's doable?

AP_TERM_TAC.  If f is injective, you should add that fact to your 
simpset so that this transformation happens with simplification.

Michael.


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