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Theorem eqdef

perm(x, y), ordered≤(x), ordered≤(y) ⊦ x = y

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 6
Used lemmas: del1-01-01, del1-01, cons-02, app-01,
Used spec theorems:
- list-perm/del-01
Used simplifier rules:
- list-perm/perm-r
- list/c
- list/a