Nuprl Lemma : fl-morph_wf
∀[I,J:fset(ℕ)]. ∀[f:I ⟶ J]. (<f> ∈ Hom(face_lattice(J);face_lattice(I)))
Proof
Definitions occuring in Statement :
fl-morph: <f>,
face_lattice: face_lattice(I),
names-hom: I ⟶ J,
bounded-lattice-hom: Hom(l1;l2),
fset: fset(T),
nat: ℕ,
uall: ∀[x:A]. B[x],
member: t ∈ T
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
names-hom: I ⟶ J,
subtype_rel: A ⊆r B,
uimplies: b supposing a,
lattice-point: Point(l),
record-select: r.x,
dM: dM(I),
free-DeMorgan-algebra: free-DeMorgan-algebra(T;eq),
mk-DeMorgan-algebra: mk-DeMorgan-algebra(L;n),
record-update: r[x := v],
ifthenelse: if b then t else f fi ,
eq_atom: x =a y,
bfalse: ff,
free-DeMorgan-lattice: free-DeMorgan-lattice(T;eq),
free-dist-lattice: free-dist-lattice(T; eq),
mk-bounded-distributive-lattice: mk-bounded-distributive-lattice,
mk-bounded-lattice: mk-bounded-lattice(T;m;j;z;o),
btrue: tt,
all: ∀x:A. B[x],
squash: ↓T,
prop: ℙ,
true: True,
guard: {T},
iff: P ⇐⇒ Q,
and: P ∧ Q,
rev_implies: P ⇐ Q,
implies: P ⇒ Q,
fl-morph: <f>,
fl1: (x=1),
fl0: (x=0),
face_lattice: face_lattice(I),
so_lambda: λ2x.t[x],
bdd-distributive-lattice: BoundedDistributiveLattice,
so_apply: x[s],
bounded-lattice-hom: Hom(l1;l2),
lattice-hom: Hom(l1;l2),
DeMorgan-algebra: DeMorganAlgebra
Lemmas referenced :
fl-lift_wf,
names_wf,
names-deq_wf,
face_lattice_wf,
face_lattice-deq_wf,
dM-to-FL_wf,
dm-neg_wf,
subtype_rel-equal,
lattice-point_wf,
dM_wf,
free-DeMorgan-lattice_wf,
equal_wf,
squash_wf,
true_wf,
dM-to-FL-neg2,
lattice-0_wf,
iff_weakening_equal,
bounded-lattice-hom_wf,
all_wf,
subtype_rel_set,
bounded-lattice-structure_wf,
lattice-structure_wf,
lattice-axioms_wf,
bounded-lattice-structure-subtype,
bounded-lattice-axioms_wf,
uall_wf,
lattice-meet_wf,
lattice-join_wf,
fl0_wf,
DeMorgan-algebra-structure_wf,
DeMorgan-algebra-structure-subtype,
subtype_rel_transitivity,
DeMorgan-algebra-axioms_wf,
fl1_wf,
names-hom_wf,
fset_wf,
nat_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
introduction,
cut,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
lambdaEquality,
because_Cache,
applyEquality,
sqequalRule,
independent_isectElimination,
lambdaFormation,
imageElimination,
equalityTransitivity,
equalitySymmetry,
universeEquality,
dependent_functionElimination,
natural_numberEquality,
imageMemberEquality,
baseClosed,
productElimination,
independent_functionElimination,
setElimination,
rename,
setEquality,
productEquality,
instantiate,
cumulativity,
axiomEquality,
isect_memberEquality
Latex:
\mforall{}[I,J:fset(\mBbbN{})]. \mforall{}[f:I {}\mrightarrow{} J]. (<f> \mmember{} Hom(face\_lattice(J);face\_lattice(I)))
Date html generated:
2017_10_05-AM-01_13_14
Last ObjectModification:
2017_07_28-AM-09_30_48
Theory : cubical!type!theory
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