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Proof step 1 from proof load-branch-child (conclusion)

⊦ load(br) = mkzbranch(key, adr, r) ↔ r = null ∧ br = mkbranch(key, adr)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
load(br) = mkzbranch(key, adr, r) ⊦ r = null ∧ br = mkbranch(key, adr)

Rule argument

Additional information

Used simplifier rules: load-branch: ⊦ load(mkbranch(key, adr)) = mkzbranch(key, adr, null);