Nuprl Lemma : quot_ring_wf

∀[r:CRng]. ∀[a:Ideal(r){i}].  ((∀x:|r|. SqStable(a x)) ⇒ (∀[d:detach_fun(|r|;a)]. (r / d ∈ CRng)))


Proof




Definitions occuring in Statement :  quot_ring: r / d,  ideal: Ideal(r){i},  crng: CRng,  rng_car: |r|,  detach_fun: detach_fun(T;A),  sq_stable: SqStable(P),  uall: ∀[x:A]. B[x],  all: ∀x:A. B[x],  implies: P ⇒ Q,  member: t ∈ T,  apply: f a
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  implies: P ⇒ Q,  ideal: Ideal(r){i},  crng: CRng,  rng: Rng,  all: ∀x:A. B[x],  guard: {T},  detach_fun: detach_fun(T;A),  prop: ℙ,  iff: P ⇐⇒ Q,  and: P ∧ Q,  subtype_rel: A ⊆r B,  rev_implies: P ⇐ Q,  ring_p: IsRing(T;plus;zero;neg;times;one),  quot_ring: r / d,  rng_car: |r|,  pi1: fst(t),  rng_plus: +r,  pi2: snd(t),  rng_zero: 0,  rng_minus: -r,  rng_times: *,  rng_one: 1,  bilinear: BiLinear(T;pl;tm),  monoid_p: IsMonoid(T;op;id),  group_p: IsGroup(T;op;id;inv),  infix_ap: x f y,  ident: Ident(T;op;id),  assoc: Assoc(T;op),  inverse: Inverse(T;op;id;inv),  quot_ring_car: Carrier(r/d),  quotient: x,y:A//B[x; y],  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  uimplies: b supposing a,  ideal_p: S Ideal of R,  subgrp_p: s SubGrp of g,  add_grp_of_rng: r↓+gp,  grp_car: |g|,  grp_op: *,  grp_id: e,  comm: Comm(T;op)
Lemmas referenced :  detach_fun_properties,  rng_car_wf,  quot_ring_car_wf,  ideal_p_wf,  subtype_rel_self,  istype-assert,  quot_ring_sig,  detach_fun_wf,  sq_stable_wf,  ideal_wf,  crng_wf,  comm_wf,  rng_times_wf,  ring_p_wf,  rng_plus_wf,  rng_zero_wf,  rng_minus_wf,  rng_one_wf,  quotient-member-eq,  assert_wf,  ideal-detach-equiv,  rng_times_assoc,  iff_weakening_equal,  rng_times_one,  sq_stable_functionality,  rng_minus_over_plus,  rng_plus_assoc,  rng_plus_ac_1,  rng_plus_comm,  rng_plus_zero,  rng_minus_zero,  rng_plus_inv,  rng_times_over_plus,  rng_times_over_minus,  crng_times_ac_1,  crng_times_comm,  rng_plus_inv_assoc,  grp_car_wf,  add_grp_of_rng_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  introduction,  cut,  lambdaFormation_alt,  sqequalHypSubstitution,  setElimination,  thin,  rename,  extract_by_obid,  isectElimination,  hypothesisEquality,  hypothesis,  independent_functionElimination,  dependent_functionElimination,  dependent_set_memberEquality_alt,  because_Cache,  universeIsType,  sqequalRule,  functionIsType,  productIsType,  applyEquality,  instantiate,  universeEquality,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  lambdaEquality_alt,  isect_memberEquality_alt,  isectIsTypeImplies,  inhabitedIsType,  functionIsTypeImplies,  independent_pairFormation,  pointwiseFunctionalityForEquality,  pertypeElimination,  promote_hyp,  productElimination,  independent_isectElimination,  equalityIstype,  sqequalBase,  independent_pairEquality

Latex:
\mforall{}[r:CRng].  \mforall{}[a:Ideal(r)\{i\}].    ((\mforall{}x:|r|.  SqStable(a  x))  {}\mRightarrow{}  (\mforall{}[d:detach\_fun(|r|;a)].  (r  /  d  \mmember{}  CRng)))



Date html generated: 2019_10_15-AM-10_33_46
Last ObjectModification: 2019_06_20-PM-06_43_59

Theory : rings_1


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