Nuprl Lemma : rv-between-translation

n:ℕ. ∀a,b,c,z:ℝ^n.  (z a-z b-z ⇐⇒ a-b-c)


Proof




Definitions occuring in Statement :  rv-between: a-b-c real-vec-add: Y real-vec: ^n nat: all: x:A. B[x] iff: ⇐⇒ Q
Definitions unfolded in proof :  all: x:A. B[x] iff: ⇐⇒ Q and: P ∧ Q implies:  Q rv-between: a-b-c real-vec-between: a-b-c exists: x:A. B[x] member: t ∈ T req-vec: req-vec(n;x;y) real-vec-add: Y real-vec-mul: a*X uall: [x:A]. B[x] nat: prop: cand: c∧ B real-vec-sep: a ≠ b rev_implies:  Q subtype_rel: A ⊆B uimplies: supposing a real-vec: ^n uiff: uiff(P;Q) itermConstant: "const" req_int_terms: t1 ≡ t2 false: False not: ¬A top: Top rev_uimplies: rev_uimplies(P;Q)
Lemmas referenced :  int_seg_wf i-member_wf rooint_wf int-to-real_wf req-vec_wf real-vec-add_wf real-vec-mul_wf rsub_wf rv-between_wf real-vec_wf nat_wf real-vec-dist_wf real_wf rleq_wf rless_functionality req_weakening real-vec-dist-translation2 radd-preserves-req radd_wf rmul_wf rminus_wf req-implies-req real_term_polynomial itermSubtract_wf itermAdd_wf itermVar_wf itermMultiply_wf itermMinus_wf itermConstant_wf real_term_value_const_lemma real_term_value_sub_lemma real_term_value_add_lemma real_term_value_var_lemma real_term_value_mul_lemma real_term_value_minus_lemma req-iff-rsub-is-0 req_functionality req_transitivity radd_functionality rminus_functionality
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity lambdaFormation independent_pairFormation sqequalHypSubstitution productElimination thin promote_hyp dependent_pairFormation hypothesisEquality hypothesis cut dependent_functionElimination sqequalRule introduction extract_by_obid isectElimination natural_numberEquality setElimination rename productEquality applyEquality lambdaEquality setEquality because_Cache independent_isectElimination independent_functionElimination computeAll int_eqEquality intEquality isect_memberEquality voidElimination voidEquality

Latex:
\mforall{}n:\mBbbN{}.  \mforall{}a,b,c,z:\mBbbR{}\^{}n.    (z  +  a-z  +  b-z  +  c  \mLeftarrow{}{}\mRightarrow{}  a-b-c)



Date html generated: 2017_10_03-AM-11_10_40
Last ObjectModification: 2017_07_28-AM-08_23_20

Theory : reals


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