Nuprl Lemma : ftc-example1
∀a,b:ℝ.  (a_∫-b t^2 dt = ((b^3/r(3)) - (a^3/r(3))))
Proof
Definitions occuring in Statement : 
integral: a_∫-b f[x] dx, 
rdiv: (x/y), 
rnexp: x^k1, 
rsub: x - y, 
req: x = y, 
int-to-real: r(n), 
real: ℝ, 
all: ∀x:A. B[x], 
natural_number: $n
Definitions unfolded in proof : 
all: ∀x:A. B[x], 
member: t ∈ T, 
rfun: I ⟶ℝ, 
uall: ∀[x:A]. B[x], 
nat: ℕ, 
le: A ≤ B, 
and: P ∧ Q, 
less_than': less_than'(a;b), 
false: False, 
not: ¬A, 
implies: P ⇒ Q, 
prop: ℙ, 
ifun: ifun(f;I), 
top: Top, 
real-fun: real-fun(f;a;b), 
uimplies: b supposing a, 
uiff: uiff(P;Q), 
rev_uimplies: rev_uimplies(P;Q), 
iff: P ⇐⇒ Q, 
so_lambda: λ2x.t[x], 
so_apply: x[s], 
rneq: x ≠ y, 
guard: {T}, 
or: P ∨ Q, 
rev_implies: P ⇐ Q, 
less_than: a < b, 
squash: ↓T, 
true: True, 
decidable: Dec(P), 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
exists: ∃x:A. B[x], 
subtract: n - m, 
sq_type: SQType(T), 
nat_plus: ℕ+
Lemmas referenced : 
real_wf, 
rnexp_wf, 
istype-false, 
istype-le, 
i-member_wf, 
rccint_wf, 
rmin_wf, 
rmax_wf, 
left_endpoint_rccint_lemma, 
istype-void, 
right_endpoint_rccint_lemma, 
req_functionality, 
rnexp_functionality, 
req_weakening, 
req_wf, 
ifun_wf, 
rccint-icompact, 
rmin-rleq-rmax, 
integral_wf, 
rsub_wf, 
rdiv_wf, 
int-to-real_wf, 
rless-int, 
rless_wf, 
riiint_wf, 
subtype_base_sq, 
int_subtype_base, 
decidable__equal_int, 
full-omega-unsat, 
intformnot_wf, 
intformeq_wf, 
itermConstant_wf, 
itermSubtract_wf, 
istype-int, 
int_formula_prop_not_lemma, 
int_formula_prop_eq_lemma, 
int_term_value_constant_lemma, 
int_term_value_subtract_lemma, 
int_formula_prop_wf, 
istype-less_than, 
ftc-total-integral, 
derivative-rdiv-const-alt, 
derivative-rnexp
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation_alt, 
inhabitedIsType, 
hypothesisEquality, 
universeIsType, 
cut, 
introduction, 
extract_by_obid, 
hypothesis, 
dependent_set_memberEquality_alt, 
sqequalRule, 
lambdaEquality_alt, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
natural_numberEquality, 
independent_pairFormation, 
setElimination, 
rename, 
setIsType, 
because_Cache, 
dependent_functionElimination, 
isect_memberEquality_alt, 
voidElimination, 
independent_isectElimination, 
productElimination, 
independent_functionElimination, 
equalityTransitivity, 
equalitySymmetry, 
closedConclusion, 
inrFormation_alt, 
imageMemberEquality, 
baseClosed, 
instantiate, 
cumulativity, 
intEquality, 
unionElimination, 
approximateComputation, 
dependent_pairFormation_alt
Latex:
\mforall{}a,b:\mBbbR{}.    (a\_\mint{}\msupminus{}b  t\^{}2  dt  =  ((b\^{}3/r(3))  -  (a\^{}3/r(3))))
Date html generated:
2019_10_31-AM-06_17_19
Last ObjectModification:
2018_11_08-PM-05_57_17
Theory : reals_2
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