[Agda] Data.Setoid ?

Wolfram Kahl kahl at cas.mcmaster.ca
Thu Nov 22 23:36:51 CET 2012


Hi Jacques,

> Does anyone have a definition of setoid equivalence?  I mean equivalence 
> between two setoids (over the same carrier set) ?

The standard library even has it for different carrier sets:

  Function.Inverse.Inverse

For the same carrier sets, you could just use relation equivalence,
which you would need to define as symmetric closure of

  Relation.Binary._⇒_


;-)


Wolfram


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