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Proof step 61 from proof prepost-remove-nonend-blocks (previous step)

# lax = # gndx1 + # gndx, jvalid ↔ false, gstore2[n] = groupblock(gndx1 + gndx, lax, m), ax = ax0 + prefixn(# gndx1, lax).to-adr(n), gndx2 = [], gndx2 = gndx1, valid-group-nodes(gndx1) = valid-group-nodes(gndx1 + gndx), inv(groupblock(gndx1 + gndx, lax, m)), inv(gstore2 \ ginval), n ∈ gstore2 ⊦ gndx1 = [], n ∈ ginval

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: a: ⊦ (gndx + gndx0) + gndx1 = gndx + gndx0 + gndx1; from specification list[group-store]% ⊦ [] + gndx = gndx; (s)% ⊦ valid-group-nodes([]) = 0; (s)