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Theorem two-ppred

m ≠ 0 ∧ m ≠ 1 ⊦ m / 2 = (m - 2) / 2 + 1

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 6
Used lemmas: div-elim,
Used spec theorems:
- Used simplifier rules: