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6
votes
0answers
143 views
Oracle sparating FIP for bounded-depth Frege from FIP for Frege (and hardness conditions on DDH)
Is there an oracle such that in the relativized world, bd-Frege (bounded depth Frege propositional proof system) has FIP (feasible interpolation property) but Frege does not have FIP?
Such an ...
13
votes
3answers
488 views
What algorithms are known for computing Craig interpolants?
Is there any survey of algorithms for computing interpolants? What about papers on only one algorithm? The case I'm most interested in is $A=\lnot p\land q$ and $C=q$, plus the constraint that the ...