Nuprl Lemma : arcsine-nonneg

∀[x:{x:ℝ| x ∈ [r0, r1)} ]. (r0 ≤ arcsine(x))


Proof




Definitions occuring in Statement :  arcsine: arcsine(x),  rcoint: [l, u),  i-member: r ∈ I,  rleq: x ≤ y,  int-to-real: r(n),  real: ℝ,  uall: ∀[x:A]. B[x],  set: {x:A| B[x]} ,  natural_number: $n
Definitions unfolded in proof :  guard: {T},  rge: x ≥ y,  uimplies: b supposing a,  true: True,  less_than': less_than'(a;b),  less_than: a < b,  rev_implies: P ⇐ Q,  iff: P ⇐⇒ Q,  so_apply: x[s],  so_lambda: λ2x.t[x],  prop: ℙ,  squash: ↓T,  implies: P ⇒ Q,  sq_stable: SqStable(P),  top: Top,  all: ∀x:A. B[x],  cand: A c∧ B,  and: P ∧ Q,  member: t ∈ T,  uall: ∀[x:A]. B[x],  subtype_rel: A ⊆r B,  strictly-increasing-on-interval: f[x] strictly-increasing for x ∈ I,  not: ¬A,  false: False,  req_int_terms: t1 ≡ t2,  uiff: uiff(P;Q)
Lemmas referenced :  rleq_weakening_equal,  rless_functionality_wrt_implies,  rless-int,  rcoint_wf,  i-member_wf,  real_wf,  set_wf,  rless_wf,  int-to-real_wf,  member_rcoint_lemma,  sq_stable__rless,  arcsine-bounds,  member_rooint_lemma,  arcsine_wf,  sq_stable__rleq,  halfpi_wf,  rminus_wf,  rooint_wf,  rsin-strictly-increasing,  not-rless,  real_term_value_const_lemma,  real_term_value_var_lemma,  real_term_value_minus_lemma,  real_term_value_mul_lemma,  real_term_value_sub_lemma,  real_polynomial_null,  req-iff-rsub-is-0,  itermConstant_wf,  itermVar_wf,  itermMinus_wf,  itermMultiply_wf,  itermSubtract_wf,  halfpi-positive,  rmul-zero-both,  rmul_wf,  rless_functionality,  rmul_reverses_rless_iff,  rsin0,  rsin-arcsine,  rsin_wf,  rless_irreflexivity,  rless_transitivity1
Rules used in proof :  independent_isectElimination,  because_Cache,  lambdaEquality,  productEquality,  independent_pairFormation,  imageElimination,  baseClosed,  imageMemberEquality,  sqequalRule,  productElimination,  independent_functionElimination,  natural_numberEquality,  minusEquality,  isectElimination,  voidEquality,  voidElimination,  isect_memberEquality,  dependent_functionElimination,  extract_by_obid,  introduction,  hypothesis,  sqequalHypSubstitution,  hypothesisEquality,  rename,  thin,  setElimination,  dependent_set_memberEquality,  cut,  isect_memberFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution,  setEquality,  applyEquality,  equalitySymmetry,  equalityTransitivity,  lambdaFormation,  intEquality,  int_eqEquality,  approximateComputation

Latex:
\mforall{}[x:\{x:\mBbbR{}|  x  \mmember{}  [r0,  r1)\}  ].  (r0  \mleq{}  arcsine(x))



Date html generated: 2017_10_04-PM-10_48_24
Last ObjectModification: 2017_08_01-PM-10_03_47

Theory : reals_2


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