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Theorem neq-fin-inf-02

⊦ σ0 + ⌜x⌝ = σ + ⌜nf0⌝ ↔ σ0 = σ + ⌜nf0⌝

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: append-cancel-l, append-split, cons-eq,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 4
Used lemmas: neq-fin-inf-03, append-fininf, append-assoc, append-inf,
Used spec theorems:
- Used simplifier rules: