Nuprl Lemma : Cauchy-Schwarz

∀[n:ℕ]. ∀[x,y:ℝ^n].  (|x ⋅ y| ≤ (||x|| * ||y||))


Proof




Definitions occuring in Statement :  real-vec-norm: ||x||,  dot-product: x ⋅ y,  real-vec: ℝ^n,  rleq: x ≤ y,  rabs: |x|,  rmul: a * b,  nat: ℕ,  uall: ∀[x:A]. B[x]
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  real-vec: ℝ^n,  so_apply: x[s],  dot-product: x ⋅ y,  real-vec-norm: ||x||
Lemmas referenced :  Cauchy-Schwarz3,  real-vec_wf,  nat_wf
Rules used in proof :  cut,  lemma_by_obid,  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  hypothesis,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  sqequalRule

Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[x,y:\mBbbR{}\^{}n].    (|x  \mcdot{}  y|  \mleq{}  (||x||  *  ||y||))



Date html generated: 2016_05_18-AM-09_49_09
Last ObjectModification: 2015_12_27-PM-11_10_47

Theory : reals


Home Index