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Theorem least-prefixpoint-def
⊦ μ(f)(x) ↔ (∀ S. f(S) ⊆ S → S(x))
Type: An axiom
Validity: The proof is valid.
Features:
Comment:
Used by:
least-fixpoint
,
mu-is-IS
,
nu-is-UN
,
prefixpoint-aux
,
prefixpoint-aux2
,
Used by units in proved state:
fixpoint-induction
,
approx-fixpoint
,
Proof exists?: No