Nuprl Lemma : fl-morph-face-lattice0
∀[J,I:fset(ℕ)]. ∀[f:J ⟶ I]. ∀[x:names(I)].  (((x=0))<f> = dM-to-FL(J;¬(f x)) ∈ Point(face_lattice(J)))
Proof
Definitions occuring in Statement : 
fl-morph: <f>, 
dM-to-FL: dM-to-FL(I;z), 
face_lattice: face_lattice(I), 
names-hom: I ⟶ J, 
names-deq: NamesDeq, 
names: names(I), 
dm-neg: ¬(x), 
face-lattice0: (x=0), 
lattice-point: Point(l), 
fset: fset(T), 
nat: ℕ, 
uall: ∀[x:A]. B[x], 
apply: f a, 
equal: s = t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
member: t ∈ T, 
fl-morph: <f>, 
names-hom: I ⟶ J, 
subtype_rel: A ⊆r B, 
DeMorgan-algebra: DeMorganAlgebra, 
so_lambda: λ2x.t[x], 
prop: ℙ, 
and: P ∧ Q, 
guard: {T}, 
uimplies: b supposing a, 
so_apply: x[s], 
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, 
bdd-distributive-lattice: BoundedDistributiveLattice, 
all: ∀x:A. B[x], 
squash: ↓T, 
true: True, 
iff: P ⇐⇒ Q, 
rev_implies: P ⇐ Q, 
implies: P ⇒ Q, 
bounded-lattice-hom: Hom(l1;l2), 
lattice-hom: Hom(l1;l2)
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, 
subtype_rel_set, 
DeMorgan-algebra-structure_wf, 
lattice-structure_wf, 
lattice-axioms_wf, 
bounded-lattice-structure-subtype, 
DeMorgan-algebra-structure-subtype, 
subtype_rel_transitivity, 
bounded-lattice-structure_wf, 
bounded-lattice-axioms_wf, 
uall_wf, 
equal_wf, 
lattice-meet_wf, 
lattice-join_wf, 
DeMorgan-algebra-axioms_wf, 
free-DeMorgan-lattice_wf, 
squash_wf, 
true_wf, 
dM-to-FL-neg2, 
lattice-0_wf, 
bdd-distributive-lattice_wf, 
iff_weakening_equal, 
set_wf, 
bounded-lattice-hom_wf, 
face-lattice_wf, 
all_wf, 
face-lattice0_wf, 
face-lattice1_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, 
because_Cache, 
lambdaEquality, 
applyEquality, 
sqequalRule, 
instantiate, 
productEquality, 
independent_isectElimination, 
cumulativity, 
universeEquality, 
lambdaFormation, 
imageElimination, 
equalityTransitivity, 
equalitySymmetry, 
dependent_functionElimination, 
setElimination, 
rename, 
natural_numberEquality, 
imageMemberEquality, 
baseClosed, 
productElimination, 
independent_functionElimination, 
isect_memberEquality, 
axiomEquality
Latex:
\mforall{}[J,I:fset(\mBbbN{})].  \mforall{}[f:J  {}\mrightarrow{}  I].  \mforall{}[x:names(I)].    (((x=0))<f>  =  dM-to-FL(J;\mneg{}(f  x)))
Date html generated:
2017_10_05-AM-01_13_31
Last ObjectModification:
2017_07_28-AM-09_31_00
Theory : cubical!type!theory
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