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The aim of this work is to show how to compute an extra hypothesis H to an unproved sequent Γ⊢?G, such that:•Γ,H⊢G is provable;•H is not trivial.•If Γ⊢G (which is not known a priory) then Γ,H⊢G has a much simpler proof. Due to the last item, this is not exactly the usual abductive reasoning found in literature, for the latter requires the input sequent not to be derivable.The idea is that Γ is a contextual...
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