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Theorem div2-odd

i % 2 = 0, 0 ≤ i ⊦ (i + 1) / 2 = i / 2

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: div-twoodd-01, div2-odd-01,
Used by units in proved state: int-pot,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: divmult, two-even, div-add1-pospos,
Used spec theorems:
- Used simplifier rules: