Nuprl Lemma : q-geometric-series
11,40
postcript
pdf
a
:
,
n
:
.
0
i
<
n
.
a
i
= if qeq(
a
;1) then
n
else (1 -
a
n
/1 -
a
) fi
latex
Definitions
r
-
s
,
(
i
=
j
)
,
qeq(
r
;
s
)
,
b
,
(
r
/
s
)
,
r
+
s
,
A
,
r
*
s
,
P
&
Q
,
i
j
<
k
,
{
i
..
j
}
,
True
,
T
,
x
.
t
(
x
)
,
P
Q
,
P
Q
,
,
ff
,
tt
,
P
Q
,
if
b
then
t
else
f
fi
,
,
t
T
,
x
:
A
.
B
(
x
)
,
False
,
x
(
s
)
,
Unit
,
,
,
S
T
Lemmas
qmul
comm
qrng
,
qmul
assoc
qrng
,
qmul
over
minus
qrng
,
qmul
over
plus
qrng
,
qmul
inv
l
,
qinv
wf
,
qadd
assoc
,
mon
ident
q
,
qinv
inv
q
,
qexp
wf
,
qmul
assoc
,
qdiv
wf
,
qmul
wf
,
qadd
wf
,
qmul
one
qrng
,
qsum-const
,
le
wf
,
qexp-one
,
int
seg
wf
,
true
wf
,
squash
wf
,
qsum
wf
,
int-rational
,
not
functionality
wrt
iff
,
assert
of
bnot
,
eqff
to
assert
,
assert-qeq
,
eqtt
to
assert
,
iff
transitivity
,
not
wf
,
bnot
wf
,
assert
wf
,
bool
wf
,
int
inc
rationals
,
qeq
wf2
,
rationals
wf
,
nat
wf
,
sum
of
geometric
prog
q
origin