Nuprl Lemma : formal-sum-mul-mul
∀[S:Type]. ∀[K:CRng]. ∀[k,b:|K|]. ∀[x:formal-sum(K;S)].  (k * b * x = k * b * x ∈ formal-sum(K;S))
Proof
Definitions occuring in Statement : 
formal-sum: formal-sum(K;S)
, 
formal-sum-mul: k * x
, 
uall: ∀[x:A]. B[x]
, 
infix_ap: x f y
, 
universe: Type
, 
equal: s = t ∈ T
, 
crng: CRng
, 
rng_times: *
, 
rng_car: |r|
Definitions unfolded in proof : 
rng: Rng
, 
crng: CRng
, 
compose: f o g
, 
top: Top
, 
member: t ∈ T
, 
basic-formal-sum: basic-formal-sum(K;S)
, 
formal-sum-mul: k * x
, 
uall: ∀[x:A]. B[x]
, 
implies: P 
⇒ Q
, 
rev_implies: P 
⇐ Q
, 
and: P ∧ Q
, 
iff: P 
⇐⇒ Q
, 
guard: {T}
, 
uimplies: b supposing a
, 
subtype_rel: A ⊆r B
, 
true: True
, 
prop: ℙ
, 
squash: ↓T
, 
infix_ap: x f y
, 
all: ∀x:A. B[x]
, 
so_apply: x[s1;s2]
, 
so_lambda: λ2x y.t[x; y]
, 
quotient: x,y:A//B[x; y]
, 
formal-sum: formal-sum(K;S)
Lemmas referenced : 
crng_wf, 
rng_car_wf, 
bag_wf, 
bag-map-map, 
iff_weakening_equal, 
rng_times_wf, 
infix_ap_wf, 
rng_times_assoc, 
equal_wf, 
true_wf, 
squash_wf, 
bag-map_wf, 
formal-sum_wf, 
equal-wf-base, 
formal-sum-mul_wf1, 
bfs-equiv-rel, 
bfs-equiv_wf, 
basic-formal-sum_wf, 
quotient-member-eq, 
rng_sig_wf, 
formal-sum-mul_functionality
Rules used in proof : 
universeEquality, 
because_Cache, 
cumulativity, 
hypothesisEquality, 
rename, 
setElimination, 
productEquality, 
hypothesis, 
voidEquality, 
voidElimination, 
isect_memberEquality, 
thin, 
isectElimination, 
sqequalHypSubstitution, 
extract_by_obid, 
introduction, 
sqequalRule, 
cut, 
isect_memberFormation, 
sqequalReflexivity, 
computationStep, 
sqequalTransitivity, 
sqequalSubstitution, 
independent_functionElimination, 
independent_isectElimination, 
baseClosed, 
imageMemberEquality, 
natural_numberEquality, 
independent_pairEquality, 
productElimination, 
functionExtensionality, 
functionEquality, 
equalitySymmetry, 
equalityTransitivity, 
imageElimination, 
lambdaEquality, 
applyEquality, 
dependent_functionElimination, 
pertypeElimination, 
pointwiseFunctionalityForEquality
Latex:
\mforall{}[S:Type].  \mforall{}[K:CRng].  \mforall{}[k,b:|K|].  \mforall{}[x:formal-sum(K;S)].    (k  *  b  *  x  =  k  *  b  *  x)
Date html generated:
2018_05_22-PM-09_45_52
Last ObjectModification:
2018_01_09-PM-00_59_13
Theory : linear!algebra
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