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Proof step 1 from proof put-same (conclusion) (back to tree)

⊦ a = b → st[a, d][b, d0] = st[b, d0]

System applied rule normalize

And obtained the following new goals

Proof step 2:
a = b, st[a, d][b, d0] ≠ st[b, d0] ⊦

Rule argument

Additional information

Proof step 2 from proof put-same (previous step) (back to tree)

a = b, st[a, d][b, d0] ≠ st[b, d0] ⊦

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: insins: ⊦ st[a, d0][a, d] = st[a, d];

Proof Tree for put-same (View conclusion)

The following image shows the proof tree of sequent calculus. The proved goal is at the bottom. You can click on the nodes to view additional rules. See here for details on colors in a proof tree.