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Theorem div-twoodd-01

⊦ i < 0 ∧ i % 2 = 0 → (i - 1) / 2 = i / 2

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 3
Used lemmas: mult-div-switch, Div-left, mod-neg-01, div2-odd, two-even, num-neg,
Used spec theorems:
- int-abs/minus-02
Used simplifier rules: