assume A1:
log 2,3 < 159 / 100
; :: thesis: ( 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)) )
set f = seq_n^ (log 2,3);
set g = seq_n^ (159 / 100);
set h = (seq_n^ (log 2,3)) /" (seq_n^ (159 / 100));
set c = (159 / 100) - (log 2,3);
A2:
(log 2,3) - (log 2,3) < (159 / 100) - (log 2,3)
by A1, XREAL_1:11;
then A3:
((159 / 100) - (log 2,3)) * (2 " ) > 0 * (2 " )
by XREAL_1:70;
A4:
((159 / 100) - (log 2,3)) / 2 <> 0
by A1;
A5:
now let p be
real number ;
:: thesis: ( p > 0 implies ex N1 being Element of NAT st
for n being Element of NAT st n >= N1 holds
abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < p )assume A6:
p > 0
;
:: thesis: ex N1 being Element of NAT st
for n being Element of NAT st n >= N1 holds
abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < preconsider p1 =
p as
Real by XREAL_0:def 1;
set N1 =
max [/((1 / p1) to_power (1 / (((159 / 100) - (log 2,3)) / 2)))\],2;
A7:
(
max [/((1 / p1) to_power (1 / (((159 / 100) - (log 2,3)) / 2)))\],2
>= [/((1 / p) to_power (1 / (((159 / 100) - (log 2,3)) / 2)))\] &
max [/((1 / p1) to_power (1 / (((159 / 100) - (log 2,3)) / 2)))\],2
>= 2 )
by XXREAL_0:25;
then A8:
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 is
Integer
by XXREAL_0:16;
then reconsider N1 =
max [/((1 / p1) to_power (1 / (((159 / 100) - (log 2,3)) / 2)))\],2 as
Element of
NAT by A7, INT_1:16;
take N1 =
N1;
:: thesis: for n being Element of NAT st n >= N1 holds
abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < plet n be
Element of
NAT ;
:: thesis: ( n >= N1 implies abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < p )assume A9:
n >= N1
;
:: thesis: abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < p
p " > 0
by A6;
then A10:
1
/ p > 0
;
[/((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 5;
then A11:
N1 >= (1 / p) to_power (1 / (((159 / 100) - (log 2,3)) / 2))
by A7, XXREAL_0:2;
A12:
(1 / p1) to_power (1 / (((159 / 100) - (log 2,3)) / 2)) > 0
by A10, POWER:39;
A13:
n > 1
by A8, A9, XXREAL_0:2;
A14:
((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n = ((seq_n^ (log 2,3)) . n) / ((seq_n^ (159 / 100)) . n)
by Lm4;
(seq_n^ (log 2,3)) . n = n to_power (log 2,3)
by A7, A9, Def3;
then A15:
((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n =
(n to_power (log 2,3)) / (n to_power (159 / 100))
by A7, A9, A14, Def3
.=
n to_power ((log 2,3) - (159 / 100))
by A7, A9, POWER:34
.=
n to_power (- ((159 / 100) - (log 2,3)))
;
n >= (1 / p) to_power (1 / (((159 / 100) - (log 2,3)) / 2))
by A9, A11, 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 A3, A12, 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 A10, POWER:38;
then
n to_power (((159 / 100) - (log 2,3)) / 2) >= (1 / p) to_power 1
by A4, XCMPLX_1:88;
then
n to_power (((159 / 100) - (log 2,3)) / 2) >= 1
/ p1
by POWER:30;
then
1
/ (n to_power (((159 / 100) - (log 2,3)) / 2)) <= 1
/ (1 / p)
by A10, XREAL_1:87;
then
1
/ (n to_power (((159 / 100) - (log 2,3)) / 2)) <= 1
/ (p " )
;
then
1
/ (n to_power (((159 / 100) - (log 2,3)) / 2)) <= p
;
then A16:
n to_power (- (((159 / 100) - (log 2,3)) / 2)) <= p
by A7, A9, POWER:33;
A17:
n to_power (((159 / 100) - (log 2,3)) / 2) > 0
by A7, A9, POWER:39;
((159 / 100) - (log 2,3)) * (1 / 2) < ((159 / 100) - (log 2,3)) * 1
by A2, XREAL_1:70;
then
n to_power (((159 / 100) - (log 2,3)) / 2) < n to_power ((159 / 100) - (log 2,3))
by A13, POWER:44;
then
1
/ (n to_power (((159 / 100) - (log 2,3)) / 2)) > 1
/ (n to_power ((159 / 100) - (log 2,3)))
by A17, XREAL_1:90;
then
n to_power (- (((159 / 100) - (log 2,3)) / 2)) > 1
/ (n to_power ((159 / 100) - (log 2,3)))
by A7, A9, POWER:33;
then
((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n < n to_power (- (((159 / 100) - (log 2,3)) / 2))
by A7, A9, A15, POWER:33;
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 A7, A9, A15, POWER:39;
hence
abs ((((seq_n^ (log 2,3)) /" (seq_n^ (159 / 100))) . n) - 0 ) < p
by A18, ABSVALUE:def 1;
:: thesis: 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 A5, SEQ_2:def 7;
then A21:
( seq_n^ (log 2,3) in Big_Oh (seq_n^ (159 / 100)) & not seq_n^ (159 / 100) in Big_Oh (seq_n^ (log 2,3)) )
by A19, ASYMPT_0:16;
then A22:
( 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)) )
by ASYMPT_0:19;
thus
seq_n^ (log 2,3) in Big_Oh (seq_n^ (159 / 100))
by A19, A20, ASYMPT_0:16; :: thesis: ( 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)) )
thus
not seq_n^ (log 2,3) in Big_Omega (seq_n^ (159 / 100))
by A21, ASYMPT_0:19; :: thesis: not seq_n^ (log 2,3) in Big_Theta (seq_n^ (159 / 100))
thus
not seq_n^ (log 2,3) in Big_Theta (seq_n^ (159 / 100))
by A22, XBOOLE_0:def 4; :: thesis: verum