Nuprl Lemma : cdrng_subtype_drng
CDRng ⊆r DRng
Proof
Definitions occuring in Statement : 
cdrng: CDRng
, 
drng: DRng
, 
subtype_rel: A ⊆r B
Definitions unfolded in proof : 
subtype_rel: A ⊆r B
, 
member: t ∈ T
, 
cdrng: CDRng
, 
drng: DRng
, 
crng: CRng
, 
rng: Rng
, 
and: P ∧ Q
, 
cand: A c∧ B
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
Lemmas referenced : 
rng_properties, 
rng_eq_wf, 
eqfun_p_wf, 
rng_one_wf, 
rng_times_wf, 
rng_minus_wf, 
rng_zero_wf, 
rng_plus_wf, 
rng_car_wf, 
ring_p_wf, 
cdrng_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaEquality, 
cut, 
lemma_by_obid, 
hypothesis, 
sqequalHypSubstitution, 
setElimination, 
thin, 
rename, 
dependent_set_memberEquality, 
hypothesisEquality, 
independent_pairFormation, 
productEquality, 
isectElimination
Latex:
CDRng  \msubseteq{}r  DRng
Date html generated:
2016_05_15-PM-00_20_52
Last ObjectModification:
2016_04_01-AM-00_44_26
Theory : rings_1
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