> Thank you for this, Florian. The one thing I had hoped for when I initiated > this change was that one can write "n-1" just like "n+1", but that doesn't > quite work yet, probably because you have some special syntax for what used to > be negative numerals. This may ease the conversion, but can we get rid of it > eventually?
The syntax for negative numerals has a bare technical reason: the
numerals of ZF. Getting rid of negative numerals entirely would require
to switch the ZF numerals to the same representation of HOL.
Cheers,
Florian
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