Nuprl Lemma : real-closed-interval-lattice_wf
∀[a,b:ℝ].  real-closed-interval-lattice(a;b) ∈ GeneralBoundedDistributiveLattice supposing a ≤ b
Proof
Definitions occuring in Statement : 
real-closed-interval-lattice: real-closed-interval-lattice(a;b)
, 
general-bounded-distributive-lattice: GeneralBoundedDistributiveLattice
, 
rleq: x ≤ y
, 
real: ℝ
, 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uimplies: b supposing a
, 
real-closed-interval-lattice: real-closed-interval-lattice(a;b)
, 
all: ∀x:A. B[x]
, 
top: Top
, 
and: P ∧ Q
, 
prop: ℙ
, 
so_lambda: λ2x y.t[x; y]
, 
cand: A c∧ B
, 
iff: P 
⇐⇒ Q
, 
implies: P 
⇒ Q
, 
or: P ∨ Q
, 
guard: {T}
, 
so_apply: x[s1;s2]
, 
uiff: uiff(P;Q)
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
equiv_rel: EquivRel(T;x,y.E[x; y])
, 
refl: Refl(T;x,y.E[x; y])
, 
sym: Sym(T;x,y.E[x; y])
, 
trans: Trans(T;x,y.E[x; y])
, 
sq_stable: SqStable(P)
, 
squash: ↓T
Lemmas referenced : 
member_rccint_lemma, 
mk-general-bounded-dist-lattice_wf, 
real_wf, 
rleq_wf, 
rmin_wf, 
rmin_ub, 
rmin_lb, 
rmax_wf, 
rmax_ub, 
rmax_lb, 
rleq_weakening_equal, 
req_wf, 
rmin-com, 
req_witness, 
set_wf, 
rmax-com, 
req_inversion, 
rmin-assoc, 
rmax-assoc, 
rmax-rmin-absorption, 
rmin-rmax-absorption, 
rmin-rmax-distrib, 
req_weakening, 
req_transitivity, 
sq_stable__req, 
rmin-req2, 
rmax-req2, 
sq_stable__rleq
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
extract_by_obid, 
sqequalHypSubstitution, 
dependent_functionElimination, 
thin, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
hypothesis, 
isectElimination, 
setEquality, 
productEquality, 
hypothesisEquality, 
because_Cache, 
lambdaEquality, 
lambdaFormation, 
setElimination, 
rename, 
productElimination, 
dependent_set_memberEquality, 
independent_functionElimination, 
independent_pairFormation, 
independent_isectElimination, 
inlFormation, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
imageMemberEquality, 
baseClosed, 
imageElimination
Latex:
\mforall{}[a,b:\mBbbR{}].    real-closed-interval-lattice(a;b)  \mmember{}  GeneralBoundedDistributiveLattice  supposing  a  \mleq{}  b
Date html generated:
2018_05_22-PM-09_56_00
Last ObjectModification:
2018_05_20-PM-10_15_13
Theory : lattices
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