object SumExampleProof extends ProofSequence
Functions to construct the straightforward cut-free FOL LK proofs of the sequents
P(sn(0),0), ∀x,y. P(s(x),y) → P(x,s(y)) :- P(0,sn(0))
where n is an Integer parameter >= 0.
This sequent is shown to have no cut-free proof which can be compressed by a single cut with a single quantifier in S. Eberhard, S. Hetzl: On the compressibility of finite languages and formal proofs, submitted, 2015.
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- ProofSequences.scala
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An integer >= 0.
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A proof of P(sn(0),0), ∀x,y. P(s(x),y) → P(x,s(y)) :- P(0,sn(0))
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This is the API documentation for GAPT.
The main package is gapt.