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Proof step 21 from proof rg2-lem2-term-unfair (previous step)

□ (R1(pm, S', S'') ∧ R2(pm, S', S'')), [:S | Boolvar ::- [PL N = n7 ∧ S = s7 ∧ N' = N'' + 1 until last] ∥nf false ::- [PL N = n8 ∧ S = s8 ∧ □ ¬ N' < N'' ∧ ◇ last]], □ (N = N' ∧ ¬ N' < N''), boolvar ∨ n2 = N0 + 1 ∧ N0 = N0'' + 1 until Boolvar, INDHYP-nat(n7 + 1) ∧ INDHYP-nat0(n2), R1(pm, s2, S), I(pm, s2), I(pm, s3), RG-restr(pm, R1, G1, Pre1, Post1, I, R2, G2, Pre2, Post2), Pre1(pm, s), Pre2(pm, s), R1(pm, s3, S), R2(pm, s3, S), N ≤ n7 + 1, I(pm, s), G1(pm, s2, s2), G2(pm, s2, s3), n8 ≤ n7 + 1, R2(pm, s2, s2), R1(pm, s2, s3), I(pm, S), ¬ R2(pm, s3, s8), ¬ R1(pm, s2, s7), boolvar1 → s2 = s3 ∧ (boolvar ↔ boolvar0) ∧ n2 = n4 ⊦ ◇ last

Proof step 21 from proof rg2-lem2-term-unfair (previous step)

User applied rule step

And closed the goal!

Rule argument

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