Nuprl Lemma : power-set_wf

[T:𝕌']. (P(T) ∈ 𝕌')


Proof




Definitions occuring in Statement :  power-set: P(T) uall: [x:A]. B[x] member: t ∈ T universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T power-set: P(T)
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalRule productEquality universeEquality functionEquality cumulativity hypothesisEquality sqequalHypSubstitution hypothesis axiomEquality equalityTransitivity equalitySymmetry

Latex:
\mforall{}[T:\mBbbU{}'].  (P(T)  \mmember{}  \mBbbU{}')



Date html generated: 2016_05_13-PM-03_51_34
Last ObjectModification: 2015_12_26-AM-10_17_19

Theory : bar-induction


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