Nuprl Lemma : req*_wf
∀[x,y:ℝ*].  (x = y ∈ ℙ)
Proof
Definitions occuring in Statement : 
req*: x = y
, 
real*: ℝ*
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
req*: x = y
, 
so_lambda: λ2x.t[x]
, 
nat: ℕ
, 
real*: ℝ*
, 
subtype_rel: A ⊆r B
, 
so_apply: x[s]
Lemmas referenced : 
exists_wf, 
nat_wf, 
all_wf, 
int_upper_wf, 
req_wf, 
int_upper_subtype_nat, 
real*_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesis, 
lambdaEquality, 
setElimination, 
rename, 
hypothesisEquality, 
applyEquality, 
because_Cache, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
isect_memberEquality
Latex:
\mforall{}[x,y:\mBbbR{}*].    (x  =  y  \mmember{}  \mBbbP{})
Date html generated:
2018_05_22-PM-03_14_08
Last ObjectModification:
2017_10_06-PM-01_54_25
Theory : reals_2
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