Step |
Hyp |
Ref |
Expression |
1 |
|
2np3bcnp1.1 |
|- ( ph -> N e. NN0 ) |
2 |
|
2cnd |
|- ( ph -> 2 e. CC ) |
3 |
1
|
nn0cnd |
|- ( ph -> N e. CC ) |
4 |
|
1cnd |
|- ( ph -> 1 e. CC ) |
5 |
2 3 4
|
adddid |
|- ( ph -> ( 2 x. ( N + 1 ) ) = ( ( 2 x. N ) + ( 2 x. 1 ) ) ) |
6 |
|
2t1e2 |
|- ( 2 x. 1 ) = 2 |
7 |
6
|
oveq2i |
|- ( ( 2 x. N ) + ( 2 x. 1 ) ) = ( ( 2 x. N ) + 2 ) |
8 |
5 7
|
eqtrdi |
|- ( ph -> ( 2 x. ( N + 1 ) ) = ( ( 2 x. N ) + 2 ) ) |
9 |
8
|
oveq1d |
|- ( ph -> ( ( 2 x. ( N + 1 ) ) + 1 ) = ( ( ( 2 x. N ) + 2 ) + 1 ) ) |
10 |
2 3
|
mulcld |
|- ( ph -> ( 2 x. N ) e. CC ) |
11 |
10 2 4
|
addassd |
|- ( ph -> ( ( ( 2 x. N ) + 2 ) + 1 ) = ( ( 2 x. N ) + ( 2 + 1 ) ) ) |
12 |
9 11
|
eqtrd |
|- ( ph -> ( ( 2 x. ( N + 1 ) ) + 1 ) = ( ( 2 x. N ) + ( 2 + 1 ) ) ) |
13 |
|
2p1e3 |
|- ( 2 + 1 ) = 3 |
14 |
13
|
a1i |
|- ( ph -> ( 2 + 1 ) = 3 ) |
15 |
14
|
oveq2d |
|- ( ph -> ( ( 2 x. N ) + ( 2 + 1 ) ) = ( ( 2 x. N ) + 3 ) ) |
16 |
12 15
|
eqtrd |
|- ( ph -> ( ( 2 x. ( N + 1 ) ) + 1 ) = ( ( 2 x. N ) + 3 ) ) |
17 |
16
|
oveq1d |
|- ( ph -> ( ( ( 2 x. ( N + 1 ) ) + 1 ) _C ( N + 1 ) ) = ( ( ( 2 x. N ) + 3 ) _C ( N + 1 ) ) ) |
18 |
|
0zd |
|- ( ph -> 0 e. ZZ ) |
19 |
|
2z |
|- 2 e. ZZ |
20 |
19
|
a1i |
|- ( ph -> 2 e. ZZ ) |
21 |
1
|
nn0zd |
|- ( ph -> N e. ZZ ) |
22 |
20 21
|
zmulcld |
|- ( ph -> ( 2 x. N ) e. ZZ ) |
23 |
|
3z |
|- 3 e. ZZ |
24 |
23
|
a1i |
|- ( ph -> 3 e. ZZ ) |
25 |
22 24
|
zaddcld |
|- ( ph -> ( ( 2 x. N ) + 3 ) e. ZZ ) |
26 |
21
|
peano2zd |
|- ( ph -> ( N + 1 ) e. ZZ ) |
27 |
1
|
nn0red |
|- ( ph -> N e. RR ) |
28 |
|
1red |
|- ( ph -> 1 e. RR ) |
29 |
1
|
nn0ge0d |
|- ( ph -> 0 <_ N ) |
30 |
|
0le1 |
|- 0 <_ 1 |
31 |
30
|
a1i |
|- ( ph -> 0 <_ 1 ) |
32 |
27 28 29 31
|
addge0d |
|- ( ph -> 0 <_ ( N + 1 ) ) |
33 |
|
2re |
|- 2 e. RR |
34 |
33
|
a1i |
|- ( ph -> 2 e. RR ) |
35 |
34 27
|
remulcld |
|- ( ph -> ( 2 x. N ) e. RR ) |
36 |
|
3re |
|- 3 e. RR |
37 |
36
|
a1i |
|- ( ph -> 3 e. RR ) |
38 |
|
1le2 |
|- 1 <_ 2 |
39 |
38
|
a1i |
|- ( ph -> 1 <_ 2 ) |
40 |
27 34 29 39
|
lemulge12d |
|- ( ph -> N <_ ( 2 x. N ) ) |
41 |
|
1le3 |
|- 1 <_ 3 |
42 |
41
|
a1i |
|- ( ph -> 1 <_ 3 ) |
43 |
27 28 35 37 40 42
|
le2addd |
|- ( ph -> ( N + 1 ) <_ ( ( 2 x. N ) + 3 ) ) |
44 |
18 25 26 32 43
|
elfzd |
|- ( ph -> ( N + 1 ) e. ( 0 ... ( ( 2 x. N ) + 3 ) ) ) |
45 |
|
bcval2 |
|- ( ( N + 1 ) e. ( 0 ... ( ( 2 x. N ) + 3 ) ) -> ( ( ( 2 x. N ) + 3 ) _C ( N + 1 ) ) = ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) x. ( ! ` ( N + 1 ) ) ) ) ) |
46 |
44 45
|
syl |
|- ( ph -> ( ( ( 2 x. N ) + 3 ) _C ( N + 1 ) ) = ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) x. ( ! ` ( N + 1 ) ) ) ) ) |
47 |
37
|
recnd |
|- ( ph -> 3 e. CC ) |
48 |
10 47 3 4
|
addsub4d |
|- ( ph -> ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) = ( ( ( 2 x. N ) - N ) + ( 3 - 1 ) ) ) |
49 |
|
2txmxeqx |
|- ( N e. CC -> ( ( 2 x. N ) - N ) = N ) |
50 |
3 49
|
syl |
|- ( ph -> ( ( 2 x. N ) - N ) = N ) |
51 |
|
3m1e2 |
|- ( 3 - 1 ) = 2 |
52 |
51
|
a1i |
|- ( ph -> ( 3 - 1 ) = 2 ) |
53 |
50 52
|
oveq12d |
|- ( ph -> ( ( ( 2 x. N ) - N ) + ( 3 - 1 ) ) = ( N + 2 ) ) |
54 |
48 53
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) = ( N + 2 ) ) |
55 |
54
|
fveq2d |
|- ( ph -> ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) = ( ! ` ( N + 2 ) ) ) |
56 |
55
|
oveq1d |
|- ( ph -> ( ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) x. ( ! ` ( N + 1 ) ) ) = ( ( ! ` ( N + 2 ) ) x. ( ! ` ( N + 1 ) ) ) ) |
57 |
56
|
oveq2d |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) x. ( ! ` ( N + 1 ) ) ) ) = ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 2 ) ) x. ( ! ` ( N + 1 ) ) ) ) ) |
58 |
|
2nn0 |
|- 2 e. NN0 |
59 |
58
|
a1i |
|- ( ph -> 2 e. NN0 ) |
60 |
1 59
|
nn0addcld |
|- ( ph -> ( N + 2 ) e. NN0 ) |
61 |
60
|
faccld |
|- ( ph -> ( ! ` ( N + 2 ) ) e. NN ) |
62 |
61
|
nncnd |
|- ( ph -> ( ! ` ( N + 2 ) ) e. CC ) |
63 |
|
1nn0 |
|- 1 e. NN0 |
64 |
63
|
a1i |
|- ( ph -> 1 e. NN0 ) |
65 |
1 64
|
nn0addcld |
|- ( ph -> ( N + 1 ) e. NN0 ) |
66 |
65
|
faccld |
|- ( ph -> ( ! ` ( N + 1 ) ) e. NN ) |
67 |
66
|
nncnd |
|- ( ph -> ( ! ` ( N + 1 ) ) e. CC ) |
68 |
62 67
|
mulcomd |
|- ( ph -> ( ( ! ` ( N + 2 ) ) x. ( ! ` ( N + 1 ) ) ) = ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) |
69 |
68
|
oveq2d |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 2 ) ) x. ( ! ` ( N + 1 ) ) ) ) = ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) ) |
70 |
10 4 2
|
addassd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) + 2 ) = ( ( 2 x. N ) + ( 1 + 2 ) ) ) |
71 |
|
1p2e3 |
|- ( 1 + 2 ) = 3 |
72 |
71
|
oveq2i |
|- ( ( 2 x. N ) + ( 1 + 2 ) ) = ( ( 2 x. N ) + 3 ) |
73 |
70 72
|
eqtrdi |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) + 2 ) = ( ( 2 x. N ) + 3 ) ) |
74 |
73
|
fveq2d |
|- ( ph -> ( ! ` ( ( ( 2 x. N ) + 1 ) + 2 ) ) = ( ! ` ( ( 2 x. N ) + 3 ) ) ) |
75 |
74
|
eqcomd |
|- ( ph -> ( ! ` ( ( 2 x. N ) + 3 ) ) = ( ! ` ( ( ( 2 x. N ) + 1 ) + 2 ) ) ) |
76 |
59 1
|
nn0mulcld |
|- ( ph -> ( 2 x. N ) e. NN0 ) |
77 |
76 64
|
nn0addcld |
|- ( ph -> ( ( 2 x. N ) + 1 ) e. NN0 ) |
78 |
|
facp2 |
|- ( ( ( 2 x. N ) + 1 ) e. NN0 -> ( ! ` ( ( ( 2 x. N ) + 1 ) + 2 ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( ( 2 x. N ) + 1 ) + 1 ) x. ( ( ( 2 x. N ) + 1 ) + 2 ) ) ) ) |
79 |
77 78
|
syl |
|- ( ph -> ( ! ` ( ( ( 2 x. N ) + 1 ) + 2 ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( ( 2 x. N ) + 1 ) + 1 ) x. ( ( ( 2 x. N ) + 1 ) + 2 ) ) ) ) |
80 |
75 79
|
eqtrd |
|- ( ph -> ( ! ` ( ( 2 x. N ) + 3 ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( ( 2 x. N ) + 1 ) + 1 ) x. ( ( ( 2 x. N ) + 1 ) + 2 ) ) ) ) |
81 |
10 4 4
|
addassd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) + 1 ) = ( ( 2 x. N ) + ( 1 + 1 ) ) ) |
82 |
|
1p1e2 |
|- ( 1 + 1 ) = 2 |
83 |
82
|
a1i |
|- ( ph -> ( 1 + 1 ) = 2 ) |
84 |
83
|
oveq2d |
|- ( ph -> ( ( 2 x. N ) + ( 1 + 1 ) ) = ( ( 2 x. N ) + 2 ) ) |
85 |
81 84
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) + 1 ) = ( ( 2 x. N ) + 2 ) ) |
86 |
71
|
a1i |
|- ( ph -> ( 1 + 2 ) = 3 ) |
87 |
86
|
oveq2d |
|- ( ph -> ( ( 2 x. N ) + ( 1 + 2 ) ) = ( ( 2 x. N ) + 3 ) ) |
88 |
70 87
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) + 2 ) = ( ( 2 x. N ) + 3 ) ) |
89 |
85 88
|
oveq12d |
|- ( ph -> ( ( ( ( 2 x. N ) + 1 ) + 1 ) x. ( ( ( 2 x. N ) + 1 ) + 2 ) ) = ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) |
90 |
89
|
oveq2d |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( ( 2 x. N ) + 1 ) + 1 ) x. ( ( ( 2 x. N ) + 1 ) + 2 ) ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) ) |
91 |
80 90
|
eqtrd |
|- ( ph -> ( ! ` ( ( 2 x. N ) + 3 ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) ) |
92 |
91
|
oveq1d |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) = ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) ) |
93 |
|
facp2 |
|- ( N e. NN0 -> ( ! ` ( N + 2 ) ) = ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) |
94 |
1 93
|
syl |
|- ( ph -> ( ! ` ( N + 2 ) ) = ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) |
95 |
94
|
oveq2d |
|- ( ph -> ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) = ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) |
96 |
95
|
oveq2d |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) = ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) ) |
97 |
1
|
faccld |
|- ( ph -> ( ! ` N ) e. NN ) |
98 |
97
|
nncnd |
|- ( ph -> ( ! ` N ) e. CC ) |
99 |
3 4
|
addcld |
|- ( ph -> ( N + 1 ) e. CC ) |
100 |
3 2
|
addcld |
|- ( ph -> ( N + 2 ) e. CC ) |
101 |
99 100
|
mulcld |
|- ( ph -> ( ( N + 1 ) x. ( N + 2 ) ) e. CC ) |
102 |
67 98 101
|
mulassd |
|- ( ph -> ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) = ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) |
103 |
102
|
eqcomd |
|- ( ph -> ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) = ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) |
104 |
103
|
oveq2d |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) = ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) |
105 |
77
|
faccld |
|- ( ph -> ( ! ` ( ( 2 x. N ) + 1 ) ) e. NN ) |
106 |
105
|
nncnd |
|- ( ph -> ( ! ` ( ( 2 x. N ) + 1 ) ) e. CC ) |
107 |
67 98
|
mulcld |
|- ( ph -> ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) e. CC ) |
108 |
10 2
|
addcld |
|- ( ph -> ( ( 2 x. N ) + 2 ) e. CC ) |
109 |
10 47
|
addcld |
|- ( ph -> ( ( 2 x. N ) + 3 ) e. CC ) |
110 |
108 109
|
mulcld |
|- ( ph -> ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) e. CC ) |
111 |
66
|
nnne0d |
|- ( ph -> ( ! ` ( N + 1 ) ) =/= 0 ) |
112 |
97
|
nnne0d |
|- ( ph -> ( ! ` N ) =/= 0 ) |
113 |
67 98 111 112
|
mulne0d |
|- ( ph -> ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) =/= 0 ) |
114 |
|
0red |
|- ( ph -> 0 e. RR ) |
115 |
27 28
|
readdcld |
|- ( ph -> ( N + 1 ) e. RR ) |
116 |
27
|
ltp1d |
|- ( ph -> N < ( N + 1 ) ) |
117 |
114 27 115 29 116
|
lelttrd |
|- ( ph -> 0 < ( N + 1 ) ) |
118 |
114 117
|
ltned |
|- ( ph -> 0 =/= ( N + 1 ) ) |
119 |
118
|
necomd |
|- ( ph -> ( N + 1 ) =/= 0 ) |
120 |
27 34
|
readdcld |
|- ( ph -> ( N + 2 ) e. RR ) |
121 |
|
2rp |
|- 2 e. RR+ |
122 |
121
|
a1i |
|- ( ph -> 2 e. RR+ ) |
123 |
27 122
|
ltaddrpd |
|- ( ph -> N < ( N + 2 ) ) |
124 |
114 27 120 29 123
|
lelttrd |
|- ( ph -> 0 < ( N + 2 ) ) |
125 |
114 124
|
ltned |
|- ( ph -> 0 =/= ( N + 2 ) ) |
126 |
125
|
necomd |
|- ( ph -> ( N + 2 ) =/= 0 ) |
127 |
99 100 119 126
|
mulne0d |
|- ( ph -> ( ( N + 1 ) x. ( N + 2 ) ) =/= 0 ) |
128 |
106 107 110 101 113 127
|
divmuldivd |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) x. ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) ) = ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) |
129 |
128
|
eqcomd |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) = ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) x. ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) |
130 |
22
|
peano2zd |
|- ( ph -> ( ( 2 x. N ) + 1 ) e. ZZ ) |
131 |
35 28
|
readdcld |
|- ( ph -> ( ( 2 x. N ) + 1 ) e. RR ) |
132 |
35
|
lep1d |
|- ( ph -> ( 2 x. N ) <_ ( ( 2 x. N ) + 1 ) ) |
133 |
27 35 131 40 132
|
letrd |
|- ( ph -> N <_ ( ( 2 x. N ) + 1 ) ) |
134 |
18 130 21 29 133
|
elfzd |
|- ( ph -> N e. ( 0 ... ( ( 2 x. N ) + 1 ) ) ) |
135 |
|
bcval2 |
|- ( N e. ( 0 ... ( ( 2 x. N ) + 1 ) ) -> ( ( ( 2 x. N ) + 1 ) _C N ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 1 ) - N ) ) x. ( ! ` N ) ) ) ) |
136 |
134 135
|
syl |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) _C N ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 1 ) - N ) ) x. ( ! ` N ) ) ) ) |
137 |
10 4 3
|
addsubd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) - N ) = ( ( ( 2 x. N ) - N ) + 1 ) ) |
138 |
50
|
oveq1d |
|- ( ph -> ( ( ( 2 x. N ) - N ) + 1 ) = ( N + 1 ) ) |
139 |
137 138
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) - N ) = ( N + 1 ) ) |
140 |
139
|
fveq2d |
|- ( ph -> ( ! ` ( ( ( 2 x. N ) + 1 ) - N ) ) = ( ! ` ( N + 1 ) ) ) |
141 |
140
|
oveq1d |
|- ( ph -> ( ( ! ` ( ( ( 2 x. N ) + 1 ) - N ) ) x. ( ! ` N ) ) = ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) |
142 |
141
|
oveq2d |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 1 ) - N ) ) x. ( ! ` N ) ) ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) ) |
143 |
136 142
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 1 ) _C N ) = ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) ) |
144 |
143
|
eqcomd |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) = ( ( ( 2 x. N ) + 1 ) _C N ) ) |
145 |
108 99 109 100 119 126
|
divmuldivd |
|- ( ph -> ( ( ( ( 2 x. N ) + 2 ) / ( N + 1 ) ) x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) = ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) ) |
146 |
145
|
eqcomd |
|- ( ph -> ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) = ( ( ( ( 2 x. N ) + 2 ) / ( N + 1 ) ) x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) |
147 |
8
|
eqcomd |
|- ( ph -> ( ( 2 x. N ) + 2 ) = ( 2 x. ( N + 1 ) ) ) |
148 |
147
|
oveq1d |
|- ( ph -> ( ( ( 2 x. N ) + 2 ) / ( N + 1 ) ) = ( ( 2 x. ( N + 1 ) ) / ( N + 1 ) ) ) |
149 |
2 99 119
|
divcan4d |
|- ( ph -> ( ( 2 x. ( N + 1 ) ) / ( N + 1 ) ) = 2 ) |
150 |
148 149
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 2 ) / ( N + 1 ) ) = 2 ) |
151 |
|
eqidd |
|- ( ph -> ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) = ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) |
152 |
150 151
|
oveq12d |
|- ( ph -> ( ( ( ( 2 x. N ) + 2 ) / ( N + 1 ) ) x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) = ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) |
153 |
146 152
|
eqtrd |
|- ( ph -> ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) = ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) |
154 |
144 153
|
oveq12d |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) ) x. ( ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) / ( ( N + 1 ) x. ( N + 2 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
155 |
129 154
|
eqtrd |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ( ! ` ( N + 1 ) ) x. ( ! ` N ) ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
156 |
104 155
|
eqtrd |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ( ! ` N ) x. ( ( N + 1 ) x. ( N + 2 ) ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
157 |
96 156
|
eqtrd |
|- ( ph -> ( ( ( ! ` ( ( 2 x. N ) + 1 ) ) x. ( ( ( 2 x. N ) + 2 ) x. ( ( 2 x. N ) + 3 ) ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
158 |
92 157
|
eqtrd |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 1 ) ) x. ( ! ` ( N + 2 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
159 |
69 158
|
eqtrd |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( N + 2 ) ) x. ( ! ` ( N + 1 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
160 |
57 159
|
eqtrd |
|- ( ph -> ( ( ! ` ( ( 2 x. N ) + 3 ) ) / ( ( ! ` ( ( ( 2 x. N ) + 3 ) - ( N + 1 ) ) ) x. ( ! ` ( N + 1 ) ) ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
161 |
46 160
|
eqtrd |
|- ( ph -> ( ( ( 2 x. N ) + 3 ) _C ( N + 1 ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |
162 |
17 161
|
eqtrd |
|- ( ph -> ( ( ( 2 x. ( N + 1 ) ) + 1 ) _C ( N + 1 ) ) = ( ( ( ( 2 x. N ) + 1 ) _C N ) x. ( 2 x. ( ( ( 2 x. N ) + 3 ) / ( N + 2 ) ) ) ) ) |