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Theorem lift-ex-o

⊦ a[_∃ ohP] = _∃(λ o, a0. a[ohP(o)])

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: aux-unknown, get-unknown, lift-unknown, write-unknown,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 10
Proof steps: 21
Used lemmas: lift-aux,
Used spec theorems:
Used simplifier rules:
- maplet/ex3
- set-basic/refset/size-zero-01
- set-basic/refset/ne-01