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Proof step 2 from proof except-refsizeeq-valid-head (previous step)

gstore0 =○refsize gstore1, valid-journal-head(nx, gstore0, ginval) ⊦ valid-journal-head(nx, gstore1, ginval)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
gstore0 =○refsize gstore1, nx.last ∈ gstore0, gstore0[nx.last].gndlist = [] ∨ gstore0[nx.last].gndlist.last.end ⊦ nx = [], nx.last ∈ ginval, nx.last ∈ gstore1 ∧ (gstore1[nx.last].gndlist = [] ∨ gstore1[nx.last].gndlist.last.end)

Rule argument

Additional information

Used simplifier rules: valid-journal-head: ⊦ valid-journal-head(nx, gstore, ginval) ↔ nx ≠ [] ∧ nx.last ∈ gstore ∧ ¬ nx.last ∈ ginval ∧ (gstore[nx.last].gndlist = [] ∨ gstore[nx.last].gndlist.last.end);