[FOM] Well founded extensional relations

[Thomas Forster]

I have just finished translated Roland Hinnion's 1975 thesis into english.
It makes good use of the idea that suitable families of isomorphism types 
of wellfounded extensional relations with a top element can give 
structures for the language of set theory.  To the best of my knowledge
this work is the first place where this idea is developed - which of 
course is my chief motive for rendering it into english, since many people 
(such as my Ph.D. students) cannot read french.

   Do listmembers know of places in the literature before 1974 where this
idea is developed?  The name of `Rowbotham' has been murmured into my ear,
but it was not accompanied by any citation.   Since i am accompanying this 
translation by a commentary i want to get the historical details 
(antecedents) right, so i would be grateful for any pointers.

         tf



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