Nuprl Lemma : set-ss-point
∀[ss,P:Top].  (Point ~ {x:Point| P[x]} )
Proof
Definitions occuring in Statement : 
set-ss: set-ss(ss;x.P[x])
, 
ss-point: Point
, 
uall: ∀[x:A]. B[x]
, 
top: Top
, 
so_apply: x[s]
, 
set: {x:A| B[x]} 
, 
sqequal: s ~ t
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
btrue: tt
, 
bfalse: ff
, 
ifthenelse: if b then t else f fi 
, 
eq_atom: x =a y
, 
top: Top
, 
member: t ∈ T
, 
all: ∀x:A. B[x]
, 
mk-ss: mk-ss, 
set-ss: set-ss(ss;x.P[x])
, 
ss-point: Point
Lemmas referenced : 
top_wf, 
rec_select_update_lemma
Rules used in proof : 
because_Cache, 
hypothesisEquality, 
isectElimination, 
sqequalAxiom, 
isect_memberFormation, 
hypothesis, 
voidEquality, 
voidElimination, 
isect_memberEquality, 
thin, 
dependent_functionElimination, 
sqequalHypSubstitution, 
extract_by_obid, 
introduction, 
cut, 
computationStep, 
sqequalTransitivity, 
sqequalReflexivity, 
sqequalRule, 
sqequalSubstitution
Latex:
\mforall{}[ss,P:Top].    (Point  \msim{}  \{x:Point|  P[x]\}  )
Date html generated:
2016_11_08-AM-09_12_08
Last ObjectModification:
2016_11_03-AM-00_00_02
Theory : inner!product!spaces
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