set c = (159 / 100) - (log (2,3));
set g = seq_n^ (159 / 100);
set f = seq_n^ (log (2,3));
set h = (seq_n^ (log (2,3))) /" (seq_n^ (159 / 100));
assume A1:
log (2,3) < 159 / 100
; ( seq_n^ (log (2,3)) in Big_Oh (seq_n^ (159 / 100)) & not seq_n^ (log (2,3)) in Big_Omega (seq_n^ (159 / 100)) & not seq_n^ (log (2,3)) in Big_Theta (seq_n^ (159 / 100)) )
then A2:
(log (2,3)) - (log (2,3)) < (159 / 100) - (log (2,3))
by XREAL_1:9;
A3:
((159 / 100) - (log (2,3))) / 2 <> 0
by A1;
A4:
now for p being Real st p > 0 holds
ex N1 being Nat st
for n being Nat st n >= N1 holds
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < pA5:
((159 / 100) - (log (2,3))) * (1 / 2) < ((159 / 100) - (log (2,3))) * 1
by A2, XREAL_1:68;
let p be
Real;
( p > 0 implies ex N1 being Nat st
for n being Nat st n >= N1 holds
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < p )assume A6:
p > 0
;
ex N1 being Nat st
for n being Nat st n >= N1 holds
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < preconsider p1 =
p as
Real ;
A7:
(1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)) > 0
by A6, POWER:34;
set N1 =
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2);
A8:
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2)
>= [/((1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\]
by XXREAL_0:25;
A9:
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2) is
Integer
by XXREAL_0:16;
A10:
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2)
>= 2
by XXREAL_0:25;
then A11:
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2)
> 1
by XXREAL_0:2;
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2)
in NAT
by A10, A9, INT_1:3;
then reconsider N1 =
max (
[/((1 / p1) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\],2) as
Nat ;
take N1 =
N1;
for n being Nat st n >= N1 holds
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < plet n be
Nat;
( n >= N1 implies |.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < p )A12:
n in NAT
by ORDINAL1:def 12;
A13:
((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n = ((seq_n^ (log (2,3))) . n) / ((seq_n^ (159 / 100)) . n)
by Lm4;
assume A14:
n >= N1
;
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < pthen
(seq_n^ (log (2,3))) . n = n to_power (log (2,3))
by A10, Def3, A12;
then A15:
((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n =
(n to_power (log (2,3))) / (n to_power (159 / 100))
by A10, A14, A13, Def3, A12
.=
n to_power ((log (2,3)) - (159 / 100))
by A10, A14, POWER:29
.=
n to_power (- ((159 / 100) - (log (2,3))))
;
[/((1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2)))\] >= (1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2))
by INT_1:def 7;
then
N1 >= (1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2))
by A8, XXREAL_0:2;
then
n >= (1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2))
by A14, XXREAL_0:2;
then
n to_power (((159 / 100) - (log (2,3))) / 2) >= ((1 / p) to_power (1 / (((159 / 100) - (log (2,3))) / 2))) to_power (((159 / 100) - (log (2,3))) / 2)
by A2, A7, Lm6;
then
n to_power (((159 / 100) - (log (2,3))) / 2) >= (1 / p1) to_power ((1 / (((159 / 100) - (log (2,3))) / 2)) * (((159 / 100) - (log (2,3))) / 2))
by A6, POWER:33;
then
n to_power (((159 / 100) - (log (2,3))) / 2) >= (1 / p) to_power 1
by A3, XCMPLX_1:87;
then
n to_power (((159 / 100) - (log (2,3))) / 2) >= 1
/ p1
by POWER:25;
then
1
/ (n to_power (((159 / 100) - (log (2,3))) / 2)) <= 1
/ (p ")
by A6, XREAL_1:85;
then A16:
n to_power (- (((159 / 100) - (log (2,3))) / 2)) <= p
by A10, A14, POWER:28;
n > 1
by A11, A14, XXREAL_0:2;
then A17:
n to_power (((159 / 100) - (log (2,3))) / 2) < n to_power ((159 / 100) - (log (2,3)))
by A5, POWER:39;
n to_power (((159 / 100) - (log (2,3))) / 2) > 0
by A10, A14, POWER:34;
then
1
/ (n to_power (((159 / 100) - (log (2,3))) / 2)) > 1
/ (n to_power ((159 / 100) - (log (2,3))))
by A17, XREAL_1:88;
then
n to_power (- (((159 / 100) - (log (2,3))) / 2)) > 1
/ (n to_power ((159 / 100) - (log (2,3))))
by A10, A14, POWER:28;
then
((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n < n to_power (- (((159 / 100) - (log (2,3))) / 2))
by A10, A14, A15, POWER:28;
then A18:
((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n < p
by A16, XXREAL_0:2;
((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n > 0
by A10, A14, A15, POWER:34;
hence
|.((((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) . n) - 0).| < p
by A18, ABSVALUE:def 1;
verum end;
then A19:
(seq_n^ (log (2,3))) /" (seq_n^ (159 / 100)) is convergent
by SEQ_2:def 6;
then A20:
lim ((seq_n^ (log (2,3))) /" (seq_n^ (159 / 100))) = 0
by A4, SEQ_2:def 7;
hence
seq_n^ (log (2,3)) in Big_Oh (seq_n^ (159 / 100))
by A19, ASYMPT_0:16; ( not seq_n^ (log (2,3)) in Big_Omega (seq_n^ (159 / 100)) & not seq_n^ (log (2,3)) in Big_Theta (seq_n^ (159 / 100)) )
A21:
not seq_n^ (159 / 100) in Big_Oh (seq_n^ (log (2,3)))
by A19, A20, ASYMPT_0:16;
hence
not seq_n^ (log (2,3)) in Big_Omega (seq_n^ (159 / 100))
by ASYMPT_0:19; not seq_n^ (log (2,3)) in Big_Theta (seq_n^ (159 / 100))
not seq_n^ (log (2,3)) in Big_Omega (seq_n^ (159 / 100))
by A21, ASYMPT_0:19;
hence
not seq_n^ (log (2,3)) in Big_Theta (seq_n^ (159 / 100))
by XBOOLE_0:def 4; verum