Nuprl Lemma : path-comp-rel_wf
∀[X:SeparationSpace]. ∀[f,g,h:Point(Path(X))].  (path-comp-rel(X;f;g;h) ∈ ℙ)
Proof
Definitions occuring in Statement : 
path-comp-rel: path-comp-rel(X;f;g;h)
, 
path-ss: Path(X)
, 
ss-point: Point(ss)
, 
separation-space: SeparationSpace
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
path-comp-rel: path-comp-rel(X;f;g;h)
, 
all: ∀x:A. B[x]
, 
top: Top
, 
prop: ℙ
, 
and: P ∧ Q
, 
uimplies: b supposing a
, 
rneq: x ≠ y
, 
guard: {T}
, 
or: P ∨ Q
, 
iff: P 
⇐⇒ Q
, 
rev_implies: P 
⇐ Q
, 
implies: P 
⇒ Q
, 
less_than: a < b
, 
squash: ↓T
, 
less_than': less_than'(a;b)
, 
true: True
, 
so_lambda: λ2x.t[x]
, 
cand: A c∧ B
, 
nat_plus: ℕ+
, 
uiff: uiff(P;Q)
, 
le: A ≤ B
, 
false: False
, 
not: ¬A
, 
so_apply: x[s]
, 
rdiv: (x/y)
, 
req_int_terms: t1 ≡ t2
Lemmas referenced : 
member_rccint_lemma, 
all_wf, 
real_wf, 
rleq_wf, 
int-to-real_wf, 
rdiv_wf, 
rless-int, 
rless_wf, 
ss-eq_wf, 
path-at_wf, 
rleq-int-fractions3, 
less_than_wf, 
false_wf, 
rleq_transitivity, 
rmul-nonneg-case1, 
rleq-int, 
rmul_preserves_rleq2, 
rmul_wf, 
rleq-int-fractions2, 
rsub_wf, 
ss-point_wf, 
path-ss_wf, 
separation-space_wf, 
rmul_comm, 
rinv_wf2, 
itermSubtract_wf, 
itermMultiply_wf, 
itermConstant_wf, 
itermVar_wf, 
req-iff-rsub-is-0, 
rleq-implies-rleq, 
rleq_functionality, 
req_transitivity, 
rmul-rinv, 
real_polynomial_null, 
real_term_value_sub_lemma, 
real_term_value_mul_lemma, 
real_term_value_const_lemma, 
real_term_value_var_lemma, 
rmul-int
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, 
productEquality, 
isectElimination, 
setEquality, 
natural_numberEquality, 
hypothesisEquality, 
because_Cache, 
independent_isectElimination, 
inrFormation, 
productElimination, 
independent_functionElimination, 
independent_pairFormation, 
imageMemberEquality, 
baseClosed, 
lambdaEquality, 
lambdaFormation, 
setElimination, 
rename, 
dependent_set_memberEquality, 
multiplyEquality, 
promote_hyp, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
approximateComputation, 
int_eqEquality, 
intEquality
Latex:
\mforall{}[X:SeparationSpace].  \mforall{}[f,g,h:Point(Path(X))].    (path-comp-rel(X;f;g;h)  \mmember{}  \mBbbP{})
Date html generated:
2020_05_20-PM-01_20_42
Last ObjectModification:
2018_06_29-PM-05_47_44
Theory : intuitionistic!topology
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