Def SQType(T) == x,y:T. x = y  {x ~ y}

is mentioned by

Thm* SQType(Knd)	[Knd_sq]
Thm* SQType(IdLnk)	[IdLnk_sq]
Thm* SQType(Id)	[Id_sq]

In prior sections: sqequal 1

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