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Proof step 4 from proof map-same (previous step)

⊦ (r => o0 * r => o1)(H) ↔ false(H)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
(r => o0 * r => o1)(H) ⊦

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ false(H)])]]