Nuprl Lemma : proj-eq_transitivity

∀[n:ℕ]. ∀[a,b,c:ℙ^n].  (a = c) supposing (b = c and a = b)


Proof




Definitions occuring in Statement :  proj-eq: a = b,  real-proj: ℙ^n,  nat: ℕ,  uimplies: b supposing a,  uall: ∀[x:A]. B[x]
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  equiv_rel: EquivRel(T;x,y.E[x; y]),  and: P ∧ Q,  proj-eq: a = b,  all: ∀x:A. B[x],  real-proj: ℙ^n,  real-vec: ℝ^n,  implies: P ⇒ Q,  nat: ℕ,  prop: ℙ,  guard: {T},  trans: Trans(T;x,y.E[x; y])
Lemmas referenced :  proj-eq-equiv,  req_witness,  rmul_wf,  int_seg_wf,  proj-eq_wf,  real-proj_wf,  nat_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  productElimination,  sqequalRule,  lambdaEquality,  dependent_functionElimination,  applyEquality,  setElimination,  rename,  hypothesis,  because_Cache,  independent_functionElimination,  natural_numberEquality,  addEquality,  isect_memberEquality,  equalityTransitivity,  equalitySymmetry

Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[a,b,c:\mBbbP{}\^{}n].    (a  =  c)  supposing  (b  =  c  and  a  =  b)



Date html generated: 2017_10_05-AM-00_18_35
Last ObjectModification: 2017_06_17-AM-10_07_50

Theory : inner!product!spaces


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