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Theorem from-succ-cons

⊦ ⌜a '⌝ + σ from n + 1 = σ from n

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: append-from-addsize-01, append-from-le-01, cons-from-addnum, cons-from-num, from-to-exchange,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 4
Used lemmas: get-from-inf, from-nf, from-inf, one-inf, from-fin, append-assoc, from-succ-cons-l-lem, from-appfin,
Used spec theorems:
- Used simplifier rules: