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Theorem class-le-predef

⊦ is_predefined_class(class) ∧ ¬ is_predefined_class(class0) → ¬ class ≤ class0

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

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Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 3
Used lemmas: le-03, le-05, le-08, le-04, le-07, le-06, le-14, le-15, le-13, le-12, le-11, le-10, le-09, le-02, le-01, predefined,
Used spec theorems:
- Used simplifier rules: