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Theorem inapp-03

⊦ ¬ a ∈ y ∧ ¬ a0 ∈ x → (x + a ' + z = y + a0 ' + y0 ↔ a = a0 ∧ x = y ∧ z = y0)

Type: A user defined theorem
Validity: The proof is valid.
Features: ws, lws,
Comment:
Used by: inapp-01, inapp-05,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 6
Used lemmas: c-06, c, in-06, in-empty, inapp-02, Nil, a,
Used spec theorems:
- Used simplifier rules: