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Theorem same-subclasses-tdnameex-04

⊦ tdname∃(str0, class) ∧ ¬ tdname∃(str, class) → ¬ same-subclasses(class, str, str0)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
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: 7
Used lemmas: same-subclasses-interfaceex, same-subclasses-classex-01,
Used spec theorems:
- typefuns/tdnameex-def
Used simplifier rules: