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Proof step 4 from proof loc (conclusion)

⊦ ¬ r < r0 ↔ ¬ ¬ (r = r0 ∨ r0 < r)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ ¬ r0 < r → (¬ r < r0 ↔ r = r0)
Proof step 2:
⊦ ¬ r < r
Proof step 3:
⊦ r < r0 ∧ r0 < r1 → r < r1

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]