At: normalization lemma1111111511221 1. hyp: Formula List 2. concl: Formula List 3. fhyp.((f) > 0) 4. M: Formula List 5. N: Formula List 6. f: Formula 7. y1: Formula 8. y2: Formula 9. (y1y2) > 0 10. hyp = (M @ (y1y2.N)) 11. L: Sequent List 12. sL.((s) = 0) 13. sL.|= s |= < y2.(M @ N),concl > 14. a:Assignment. sL.a | s a | < y2.(M @ N),concl > 15. L1: Sequent List 16. sL1.((s) = 0) 17. sL1.|= s |= < M @ N,y1.concl > 18. a:Assignment. sL1.a | s a | < M @ N,y1.concl >
L:Sequent List.
sL.((s) = 0)
& (sL.|= s |= < M @ (y1y2.N),concl > )
& (a:Assignment. sL.a | s a | < M @ (y1y2.N),concl > ) By: Witness L @ L1 Generated subgoals: