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Theorem exputin

⊦ ∃ st0. st0[a, d] = st[a, d] ∧ ¬ a ∈ st0

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 5
Used lemmas: put-neq, In-insert, exin,
Used spec theorems:
- Used simplifier rules: