That and the paper it references are actually what I was working from! HF 
theory employs terms, so I was wondering, for instance, if ax-5 would need to 
be rephrased to work with terms. 

> On Aug 15, 2021, at 12:02 PM, Ken Kubota <[email protected]> wrote:
> 
> 
> I’m not sure whether this helps, but Larry Paulson's presentation employs HF 
> set theory:
>       https://www.cl.cam.ac.uk/~lp15/papers/Formath/Goedel-logic-mine.pdf
> 
> Kind regards,
> 
> Ken Kubota
> 
> ____________________________________________________
> 
> Ken Kubota
> https://doi.org/10.4444/100
> 
> 
> 
>> Am 15.08.2021 um 01:11 schrieb Scott Fenton <[email protected]>:
>> 
>> Hi all,
>> 
>> Has anyone done research into predicate calculus terms/functions and 
>> metalogical completeness? I'm interested in formalizing hereditarily finite 
>> set theory, but its standard presentation comes with terms.
>> 
>> Thanks,
>> Scott
>> 
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