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Theorem notone

⊦ 1 < i ∧ 0 < j → ¬ i ^ j ≤ 1

Type: A user defined theorem
Validity: The proof is valid.
Features: localsimp,
Comment:
Used by: le-pos, notneg, two-leone,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 7
Used lemmas: Pot-zero, Pot-pos,
Used spec theorems:
- Used simplifier rules: