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Theorem inapp-08

⊦ a ' + x = y + b ' ∧ y ≠ [] → a ∈ y ∧ b ∈ x

Type: A user defined theorem
Validity: The proof is valid.
Features: inefficientacforward, forward, localforward,
Comment:
Used by: inapp-09, inapp-13, last-01,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: e-01, c-06, c, in-rec, in-17, in-append, in-15, a, in-14,
Used spec theorems:
- Used simplifier rules: