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Theorem one-inf

⊦ ⌜a '⌝ + ⌜nf⌝ = ⌜λ n. (n = 0 ⊃ a;nf(n -1))⌝

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: elim-hd-tl, expand-cons, from-cons-one, from-succ, from-succ-cons, get-cons-succ, get-cons-zero, to-succ-cons, to-unwind-end,
Used by units in proved state: mon-lim-filter-count,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: append-assoc, append-cancel-l, cons-append, intrace-expand,
Used spec theorems:
- Used simplifier rules: