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Proof step 19 from proof nodes-write-same-flushed (previous step)

gstore ↓[m, groupblock(prefixn(valid-group-nodes(gndx), gndx), prefixn(valid-group-nodes(gndx), lax), m0)][m1] = groupblock(gndx0, lax0, m4), gstore[m] = groupblock(gndx, lax, n0), gstore[m1] ↓ = groupblock(gndx1, lax1, m5), m ∈ gstore, valid-group-nodes(gndx) ≤ n0, n0 ≤ m0, valid-group-nodes(gndx) ≤ m0 ⊦ (¬ m1 ∈ ginval → m1 ∈ gstore → (@(m2, m3) ∈ lax0 ↔ @(m2, m3) ∈ lax1)) ∧ ( m1 ∈ gstore ∧ @(m2, m3) ∈ lax0 ∧ ¬ m1 ∈ ginval → nodes(gstore ↓[m, groupblock(prefixn(valid-group-nodes(gndx), gndx), prefixn(valid-group-nodes(gndx), lax), m0)], ginval)[@(m1, m2, m3)] = nodes(gstore ↓, ginval)[@(m1, m2, m3)])

Heuristic nonsplitting cut applied rule cut formula

And obtained the following new goals

Proof step 20:
gstore[m] = groupblock(gndx, lax, n0), gstore ↓[m, groupblock(prefixn(valid-group-nodes(gndx), gndx), prefixn(valid-group-nodes(gndx), lax), m0)][m1] = groupblock(gndx0, lax0, m4), gstore[m1] ↓ = groupblock(gndx1, lax1, m5), m ∈ gstore, valid-group-nodes(gndx) ≤ m0, n0 ≤ m0, valid-group-nodes(gndx) ≤ n0 ⊦ m1 ∈ ginval, (¬ m1 ∈ ginval → m1 ∈ gstore → (@(m2, m3) ∈ lax0 ↔ @(m2, m3) ∈ lax1)) ∧ ( m1 ∈ gstore ∧ @(m2, m3) ∈ lax0 ∧ ¬ m1 ∈ ginval → nodes(gstore ↓[m, groupblock(prefixn(valid-group-nodes(gndx), gndx), prefixn(valid-group-nodes(gndx), lax), m0)], ginval)[@(m1, m2, m3)] = nodes(gstore ↓, ginval)[@(m1, m2, m3)])

Rule argument

fma: m1 ∈ ginval

Additional information

Used formulas: m1 ∈ ginval