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For question in Proof Theory, where "proofs" themselves are the object of mathematical investigation. It is not to be used to request a proof of some result.

33 votes
Accepted

Time in Girard's Geometry of Interaction

I did my PhD thesis in Girard's team in Marseille (my supervisor was Laurent Regnier, himself a student of Girard's) so I have quite a bit of experience with his "excentric" way of communicating and I …
Damiano Mazza's user avatar
9 votes

How to handle sums in Tait's reducibility proof of strong normalisation?

Let me add to the above (perfectly correct) answers that there is a more general perspective, which works for all positive connectives, of which sums are a special case. The fundamental insight is tha …
Damiano Mazza's user avatar