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Theorem grz

⊦ 0 < i → (0 < i ^ j ↔ i = 1 ∨ 0 ≤ j)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: le-pos, pot-zero-01, pot2-pos,
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: notneg-01, one-01, eqone-02, zero-02, Pot-neg,
Used spec theorems:
- Used simplifier rules: