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Theorem remtau-one

⊦ ext(a) ≠ None → ext !(a ') = ext(a).get '

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: finremtau-one, one-eq-empty, remtau-one-02,
Used by units in proved state: IOrefine-conds-imply-IOrefine, IOtrace,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 5
Used lemmas: addopt, remtau-empty, finremtau-def, remtau-cons,
Used spec theorems:
- Used simplifier rules: