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Theorem size-from-less

⊦ ¬ # σ < ⌜n⌝ → (#(σ from n) < ⌜n0⌝ ↔ # σ < ⌜n + n0⌝ )

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: size-inf, from-inf, length-from, size-fin, from-fin,
Used spec theorems:
- Used simplifier rules: