Nuprl Lemma : grp_leq_shift_right

∀[g:OGrp]. ∀[a,b:|g|].  uiff(a ≤ b;e ≤ (b * (~ a)))


Proof




Definitions occuring in Statement :  ocgrp: OGrp,  grp_leq: a ≤ b,  grp_inv: ~,  grp_id: e,  grp_op: *,  grp_car: |g|,  uiff: uiff(P;Q),  uall: ∀[x:A]. B[x],  infix_ap: x f y,  apply: f a
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uiff: uiff(P;Q),  and: P ∧ Q,  uimplies: b supposing a,  grp_leq: a ≤ b,  ocgrp: OGrp,  ocmon: OCMon,  abmonoid: AbMon,  mon: Mon,  implies: P ⇒ Q,  prop: ℙ,  infix_ap: x f y,  squash: ↓T,  subtype_rel: A ⊆r B,  guard: {T},  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q
Lemmas referenced :  grp_leq_op_l,  iff_weakening_uiff,  uiff_wf,  iabmonoid_wf,  abmonoid_wf,  abdmonoid_wf,  ocmon_wf,  ocgrp_subtype_ocmon,  ocmon_subtype_abdmonoid,  abdmonoid_abmonoid,  abmonoid_subtype_iabmonoid,  abmonoid_comm,  iff_weakening_equal,  igrp_wf,  grp_wf,  abgrp_wf,  subtype_rel_transitivity,  ocgrp_subtype_abgrp,  abgrp_subtype_grp,  grp_subtype_igrp,  grp_inverse,  grp_sig_wf,  true_wf,  squash_wf,  ocgrp_wf,  grp_leq_wf,  grp_inv_wf,  grp_op_wf,  grp_id_wf,  grp_le_wf,  bool_wf,  grp_car_wf,  infix_ap_wf,  assert_witness
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  sqequalHypSubstitution,  productElimination,  thin,  independent_pairEquality,  isect_memberEquality,  isectElimination,  hypothesisEquality,  lemma_by_obid,  setElimination,  rename,  hypothesis,  because_Cache,  applyEquality,  independent_functionElimination,  equalityTransitivity,  equalitySymmetry,  independent_pairFormation,  addLevel,  independent_isectElimination,  lambdaEquality,  imageElimination,  instantiate,  natural_numberEquality,  imageMemberEquality,  baseClosed,  universeEquality,  cumulativity

Latex:
\mforall{}[g:OGrp].  \mforall{}[a,b:|g|].    uiff(a  \mleq{}  b;e  \mleq{}  (b  *  (\msim{}  a)))



Date html generated: 2016_05_15-PM-00_13_41
Last ObjectModification: 2016_01_15-PM-11_05_56

Theory : groups_1


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