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Theorem ocs-del-del1

⊦ #oc(a, x) = 1 → x -l a = x -1l a

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: 1
Proof steps: 5
Used lemmas: one-01, oc-zero, one, ocappend, oc-e,
Used spec theorems:
- Used simplifier rules: