Nuprl Lemma : subtype_rel_list
∀[A,B:Type].  (A List) ⊆r (B List) supposing A ⊆r B
Proof
Definitions occuring in Statement : 
list: T List
, 
uimplies: b supposing a
, 
subtype_rel: A ⊆r B
, 
uall: ∀[x:A]. B[x]
, 
universe: Type
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uimplies: b supposing a
, 
list: T List
, 
so_lambda: λ2x.t[x]
, 
nat: ℕ
, 
so_apply: x[s]
, 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
prop: ℙ
, 
subtype_rel: A ⊆r B
Lemmas referenced : 
subtype_rel_sets, 
colist_wf, 
has-value_wf-partial, 
nat_wf, 
set-value-type, 
le_wf, 
int-value-type, 
colength_wf, 
subtype_rel_set, 
subtype_rel_colist, 
subtype_rel_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
lemma_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
sqequalRule, 
lambdaEquality, 
independent_isectElimination, 
intEquality, 
natural_numberEquality, 
cumulativity, 
because_Cache, 
lambdaFormation, 
axiomEquality, 
isect_memberEquality, 
equalityTransitivity, 
equalitySymmetry, 
universeEquality
Latex:
\mforall{}[A,B:Type].    (A  List)  \msubseteq{}r  (B  List)  supposing  A  \msubseteq{}r  B
Date html generated:
2016_05_14-AM-06_25_45
Last ObjectModification:
2015_12_26-PM-00_42_25
Theory : list_0
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