Nuprl Lemma : relclosed-set_wf

[R:Set{i:l} ⟶ Set{i:l} ⟶ ℙ']. ∀[s:Set{i:l}].  (closed(x,a.R[x;a])s ∈ ℙ')


Proof




Definitions occuring in Statement :  relclosed-set: closed(x,a.R[x; a])s Set: Set{i:l} uall: [x:A]. B[x] prop: so_apply: x[s1;s2] member: t ∈ T function: x:A ⟶ B[x]
Definitions unfolded in proof :  so_apply: x[s] so_apply: x[s1;s2] prop: implies:  Q so_lambda: λ2x.t[x] relclosed-set: closed(x,a.R[x; a])s member: t ∈ T uall: [x:A]. B[x]
Lemmas referenced :  setmem_wf setsubset_wf Set_wf all_wf
Rules used in proof :  universeEquality because_Cache isect_memberEquality equalitySymmetry equalityTransitivity axiomEquality applyEquality hypothesisEquality cumulativity functionEquality lambdaEquality hypothesis isectElimination sqequalHypSubstitution extract_by_obid instantiate thin sqequalRule cut introduction isect_memberFormation sqequalReflexivity computationStep sqequalTransitivity sqequalSubstitution

Latex:
\mforall{}[R:Set\{i:l\}  {}\mrightarrow{}  Set\{i:l\}  {}\mrightarrow{}  \mBbbP{}'].  \mforall{}[s:Set\{i:l\}].    (closed(x,a.R[x;a])s  \mmember{}  \mBbbP{}')



Date html generated: 2018_05_29-PM-01_53_21
Last ObjectModification: 2018_05_25-PM-05_20_55

Theory : constructive!set!theory


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