S:Sequent. (S) < ( < hyp,concl > ) (L:Sequent List. sL.((s) = 0) & (sL.|= s |= S ) & (a:Assignment. sL.a | s a | S))

fhyp.((f) > 0)

fconcl.((f) > 0)

( < hyp,concl > ) = 0

L:Sequent List. sL.((s) = 0) & (sL.|= s |= < hyp,concl > ) & (a:Assignment. sL.a | s a | < hyp,concl > )

1	s[ < hyp,concl > ].((s) = 0) & (s[ < hyp,concl > ].|= s |= < hyp,concl > ) & (a:Assignment. s[ < hyp,concl > ].a | s a | < hyp,concl > )

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