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Theorem loc

⊦ ¬ a < b ↔ ¬ ¬(a = b ∨ b < a)

Type: A user defined theorem
Validity: The proof is valid.
Features: localsimp,
Comment:
Used by: lel, nen, nll, nnn,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: irreflexivity, transitivity, seq,
Used spec theorems:
- Used simplifier rules: