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Theorem isin-01

⊦ c ' + x + b ' = y + a ' + a ' + z ∧ a ≠ b → a ∈ x

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
Used by units in proved state: list-dup,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 4
Used lemmas: neq-05, app-06, app, lastdiv, inapp-02, inapp-10, in-empty, c-06, Nil, in-rec, in-append, in-01, in-15, in-14, a, in-16,
Used spec theorems:
- Used simplifier rules: