Nuprl Lemma : rmul-distrib2
∀[x,y,z:ℝ]. (((y + z) * x) = ((y * x) + (z * x)))
Proof
Definitions occuring in Statement :
req: x = y,
rmul: a * b,
radd: a + b,
real: ℝ,
uall: ∀[x:A]. B[x]
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
implies: P ⇒ Q,
uimplies: b supposing a,
uiff: uiff(P;Q),
and: P ∧ Q,
rev_uimplies: rev_uimplies(P;Q)
Lemmas referenced :
req_witness,
rmul_wf,
radd_wf,
real_wf,
rmul-distrib1,
req_functionality,
rmul_comm,
radd_functionality
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
introduction,
cut,
lemma_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
independent_functionElimination,
sqequalRule,
isect_memberEquality,
because_Cache,
independent_isectElimination,
productElimination
Latex:
\mforall{}[x,y,z:\mBbbR{}]. (((y + z) * x) = ((y * x) + (z * x)))
Date html generated:
2016_05_18-AM-06_52_27
Last ObjectModification:
2015_12_28-AM-00_30_31
Theory : reals
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