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Proof step 4 from proof inv-truncate (previous step)

ginval = ginval1, ginval0 = ginval2, gstore = gstore1, gstore0 = gstore2, remove-refsize0(gstore1) = gstore1, elems nx ∩ ginval2 = ∅, dom gstore1 ∪ elems nx = dom gstore2 ∪ ginval2, inv(gstore1), inv(gstore2 \ ginval2), ri-inj(fi0), ri-inj(fi) ⊦ ⟪let ks = datakeys(key, n, fi) in fi := fi \ ks, as := fi[ks]⟫ ri-inj(fi), dups(nx)

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Proof step 5:
ginval = ginval1, ginval0 = ginval2, gstore = gstore1, gstore0 = gstore2, ks = datakeys(key, n, fi), remove-refsize0(gstore1) = gstore1, elems nx ∩ ginval2 = ∅, dom gstore1 ∪ elems nx = dom gstore2 ∪ ginval2, inv(gstore2 \ ginval2), inv(gstore1), ri-inj(fi), ri-inj(fi0) ⊦ ⟪fi := fi \ ks, as := fi[ks]⟫ ri-inj(fi), dups(nx)

Proof step 4 from proof inv-truncate (previous step)

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Rule argument

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