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Theorem square-not-neg-02

⊦ 0 ≤ i → (sqrt(i) ≤ 0 ↔ i = 0)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: square-not-neg-03, square-three, square-two,
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: square-not-neg-05, root-pos, zero-01,
Used spec theorems:
- Used simplifier rules: