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: uimplies: supposing a uall: [x:A]. B[x] member: t ∈ T
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T uimplies: supposing a real-closed-interval-lattice: real-closed-interval-lattice(a;b) all: x:A. B[x] top: Top and: P ∧ Q prop: so_lambda: λ2y.t[x; y] cand: c∧ B iff: ⇐⇒ Q implies:  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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