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Proof step 2 from proof refsize-0-notin-index (previous step)

gstore[n] = groupblock(gndx, lax, 0), inv(gstore \ ginval), refsize-cons(gstore, range ri), ri-cons(ri, nodes(gstore ↓, ginval)), @(n, m0, m1) ∈ ri, n ∈ gstore ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
gstore[n] = groupblock(gndx, lax, 0), inv(gstore \ ginval), refsize-cons(gstore, range ri), ri-cons(ri, nodes(gstore ↓, ginval)), n ∈ gstore, @(n, m0, m1) ∈ ri ⊦

Proof step 2 from proof refsize-0-notin-index (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information