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Theorem square-le-01

⊦ m * (m + 1) ≤ (n + 1) * (n + 2) ↔ m ≤ n + 1

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: 1
Proof steps: 1
Used lemmas: succ, dist, mult-c, mult-a, rsucc-01, square-le,
Used spec theorems:
- Used simplifier rules:
  - nat-basic2/a
  - nat-basic2/c