Nuprl Lemma : integral-const
∀[a,b,c:ℝ].  (a_∫-b c dx = (c * (b - a)))
Proof
Definitions occuring in Statement : 
integral: a_∫-b f[x] dx
, 
rsub: x - y
, 
req: x = y
, 
rmul: a * b
, 
real: ℝ
, 
uall: ∀[x:A]. B[x]
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
integral: a_∫-b f[x] dx
, 
subtype_rel: A ⊆r B
, 
rfun: I ⟶ℝ
, 
all: ∀x:A. B[x]
, 
top: Top
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
and: P ∧ Q
, 
prop: ℙ
, 
uimplies: b supposing a
, 
ifun: ifun(f;I)
, 
real-fun: real-fun(f;a;b)
, 
implies: P 
⇒ Q
, 
iff: P 
⇐⇒ Q
, 
uiff: uiff(P;Q)
, 
rev_uimplies: rev_uimplies(P;Q)
, 
rsub: x - y
Lemmas referenced : 
req_witness, 
top_wf, 
member_rccint_lemma, 
subtype_rel_dep_function, 
real_wf, 
rleq_wf, 
rmin_wf, 
rmax_wf, 
subtype_rel_self, 
set_wf, 
left_endpoint_rccint_lemma, 
right_endpoint_rccint_lemma, 
req_weakening, 
req_wf, 
i-member_wf, 
rccint_wf, 
ifun_wf, 
rccint-icompact, 
rmin-rleq-rmax, 
integral_wf, 
rmul_wf, 
rsub_wf, 
rmin-rleq, 
Riemann-integral_wf, 
radd_wf, 
int-to-real_wf, 
rminus_wf, 
req_functionality, 
rsub_functionality, 
Riemann-integral-const, 
uiff_transitivity, 
radd_functionality, 
rminus_functionality, 
req_transitivity, 
rmul-distrib, 
rmul_over_rminus, 
rmul_comm, 
rminus-radd, 
req_inversion, 
radd-assoc, 
radd-ac, 
radd_comm, 
rminus-as-rmul, 
rmul_functionality, 
rmul-identity1, 
rmul-distrib2, 
radd-int, 
rmul-zero-both, 
rminus-zero, 
radd-zero-both
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
dependent_set_memberEquality, 
lambdaEquality, 
hypothesisEquality, 
hypothesis, 
applyEquality, 
sqequalRule, 
dependent_functionElimination, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
setEquality, 
productEquality, 
independent_isectElimination, 
because_Cache, 
lambdaFormation, 
setElimination, 
rename, 
productElimination, 
independent_functionElimination, 
equalityTransitivity, 
equalitySymmetry, 
minusEquality, 
natural_numberEquality, 
addEquality
Latex:
\mforall{}[a,b,c:\mBbbR{}].    (a\_\mint{}\msupminus{}b  c  dx  =  (c  *  (b  -  a)))
Date html generated:
2016_10_26-PM-00_07_38
Last ObjectModification:
2016_09_12-PM-05_38_42
Theory : reals_2
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