Theorem prodfrecap 11487

Description: The reciprocal of a finite product. (Contributed by Scott Fenton, 15-Jan-2018.) (Revised by Jim Kingdon, 24-Mar-2024.)

Hypotheses

Ref	Expression
prodfap0.1	|- ( ph -> N e. ( ZZ>= ` M ) )
prodfap0.2	|- ( ( ph /\ k e. ( ZZ>= ` M ) ) -> ( F ` k ) e. CC )
prodfap0.3	|- ( ( ph /\ k e. ( M ... N ) ) -> ( F ` k ) # 0 )
prodfrec.4	|- ( ( ph /\ k e. ( M ... N ) ) -> ( G ` k ) = ( 1 / ( F ` k ) ) )
prodfrecap.g	|- ( ( ph /\ k e. ( ZZ>= ` M ) ) -> ( G ` k ) e. CC )

Assertion

Ref	Expression
prodfrecap	|- ( ph -> ( seq M ( x. , G ) ` N ) = ( 1 / ( seq M ( x. , F ) ` N ) ) )

Distinct variable groups:   k, F   k, M   k, N   ph, k   k, G

Proof of Theorem prodfrecap

Dummy variables n v m are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		prodfap0.1	. . 3 |- ( ph -> N e. ( ZZ>= ` M ) )
2		eluzfz2 9967	. . 3 |- ( N e. ( ZZ>= ` M ) -> N e. ( M ... N ) )
3	1, 2	syl 14	. 2 |- ( ph -> N e. ( M ... N ) )
4		fveq2 5486	. . . . 5 |- ( m = M -> ( seq M ( x. , G ) ` m ) = ( seq M ( x. , G ) ` M ) )
5		fveq2 5486	. . . . . 6 |- ( m = M -> ( seq M ( x. , F ) ` m ) = ( seq M ( x. , F ) ` M ) )
6	5	oveq2d 5858	. . . . 5 |- ( m = M -> ( 1 / ( seq M ( x. , F ) ` m ) ) = ( 1 / ( seq M ( x. , F ) ` M ) ) )
7	4, 6	eqeq12d 2180	. . . 4 |- ( m = M -> ( ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) <-> ( seq M ( x. , G ) ` M ) = ( 1 / ( seq M ( x. , F ) ` M ) ) ) )
8	7	imbi2d 229	. . 3 |- ( m = M -> ( ( ph -> ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) ) <-> ( ph -> ( seq M ( x. , G ) ` M ) = ( 1 / ( seq M ( x. , F ) ` M ) ) ) ) )
9		fveq2 5486	. . . . 5 |- ( m = n -> ( seq M ( x. , G ) ` m ) = ( seq M ( x. , G ) ` n ) )
10		fveq2 5486	. . . . . 6 |- ( m = n -> ( seq M ( x. , F ) ` m ) = ( seq M ( x. , F ) ` n ) )
11	10	oveq2d 5858	. . . . 5 |- ( m = n -> ( 1 / ( seq M ( x. , F ) ` m ) ) = ( 1 / ( seq M ( x. , F ) ` n ) ) )
12	9, 11	eqeq12d 2180	. . . 4 |- ( m = n -> ( ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) <-> ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) )
13	12	imbi2d 229	. . 3 |- ( m = n -> ( ( ph -> ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) ) <-> ( ph -> ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) ) )
14		fveq2 5486	. . . . 5 |- ( m = ( n + 1 ) -> ( seq M ( x. , G ) ` m ) = ( seq M ( x. , G ) ` ( n + 1 ) ) )
15		fveq2 5486	. . . . . 6 |- ( m = ( n + 1 ) -> ( seq M ( x. , F ) ` m ) = ( seq M ( x. , F ) ` ( n + 1 ) ) )
16	15	oveq2d 5858	. . . . 5 |- ( m = ( n + 1 ) -> ( 1 / ( seq M ( x. , F ) ` m ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) )
17	14, 16	eqeq12d 2180	. . . 4 |- ( m = ( n + 1 ) -> ( ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) <-> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) ) )
18	17	imbi2d 229	. . 3 |- ( m = ( n + 1 ) -> ( ( ph -> ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) ) <-> ( ph -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) ) ) )
19		fveq2 5486	. . . . 5 |- ( m = N -> ( seq M ( x. , G ) ` m ) = ( seq M ( x. , G ) ` N ) )
20		fveq2 5486	. . . . . 6 |- ( m = N -> ( seq M ( x. , F ) ` m ) = ( seq M ( x. , F ) ` N ) )
21	20	oveq2d 5858	. . . . 5 |- ( m = N -> ( 1 / ( seq M ( x. , F ) ` m ) ) = ( 1 / ( seq M ( x. , F ) ` N ) ) )
22	19, 21	eqeq12d 2180	. . . 4 |- ( m = N -> ( ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) <-> ( seq M ( x. , G ) ` N ) = ( 1 / ( seq M ( x. , F ) ` N ) ) ) )
23	22	imbi2d 229	. . 3 |- ( m = N -> ( ( ph -> ( seq M ( x. , G ) ` m ) = ( 1 / ( seq M ( x. , F ) ` m ) ) ) <-> ( ph -> ( seq M ( x. , G ) ` N ) = ( 1 / ( seq M ( x. , F ) ` N ) ) ) ) )
24		eluzfz1 9966	. . . . . . 7 |- ( N e. ( ZZ>= ` M ) -> M e. ( M ... N ) )
25	1, 24	syl 14	. . . . . 6 |- ( ph -> M e. ( M ... N ) )
26		fveq2 5486	. . . . . . . . 9 |- ( k = M -> ( G ` k ) = ( G ` M ) )
27		fveq2 5486	. . . . . . . . . 10 |- ( k = M -> ( F ` k ) = ( F ` M ) )
28	27	oveq2d 5858	. . . . . . . . 9 |- ( k = M -> ( 1 / ( F ` k ) ) = ( 1 / ( F ` M ) ) )
29	26, 28	eqeq12d 2180	. . . . . . . 8 |- ( k = M -> ( ( G ` k ) = ( 1 / ( F ` k ) ) <-> ( G ` M ) = ( 1 / ( F ` M ) ) ) )
30	29	imbi2d 229	. . . . . . 7 |- ( k = M -> ( ( ph -> ( G ` k ) = ( 1 / ( F ` k ) ) ) <-> ( ph -> ( G ` M ) = ( 1 / ( F ` M ) ) ) ) )
31		prodfrec.4	. . . . . . . 8 |- ( ( ph /\ k e. ( M ... N ) ) -> ( G ` k ) = ( 1 / ( F ` k ) ) )
32	31	expcom 115	. . . . . . 7 |- ( k e. ( M ... N ) -> ( ph -> ( G ` k ) = ( 1 / ( F ` k ) ) ) )
33	30, 32	vtoclga 2792	. . . . . 6 |- ( M e. ( M ... N ) -> ( ph -> ( G ` M ) = ( 1 / ( F ` M ) ) ) )
34	25, 33	mpcom 36	. . . . 5 |- ( ph -> ( G ` M ) = ( 1 / ( F ` M ) ) )
35		eluzel2 9471	. . . . . . 7 |- ( N e. ( ZZ>= ` M ) -> M e. ZZ )
36	1, 35	syl 14	. . . . . 6 |- ( ph -> M e. ZZ )
37		prodfrecap.g	. . . . . 6 |- ( ( ph /\ k e. ( ZZ>= ` M ) ) -> ( G ` k ) e. CC )
38		mulcl 7880	. . . . . . 7 |- ( ( k e. CC /\ v e. CC ) -> ( k x. v ) e. CC )
39	38	adantl 275	. . . . . 6 |- ( ( ph /\ ( k e. CC /\ v e. CC ) ) -> ( k x. v ) e. CC )
40	36, 37, 39	seq3-1 10395	. . . . 5 |- ( ph -> ( seq M ( x. , G ) ` M ) = ( G ` M ) )
41		prodfap0.2	. . . . . . 7 |- ( ( ph /\ k e. ( ZZ>= ` M ) ) -> ( F ` k ) e. CC )
42	36, 41, 39	seq3-1 10395	. . . . . 6 |- ( ph -> ( seq M ( x. , F ) ` M ) = ( F ` M ) )
43	42	oveq2d 5858	. . . . 5 |- ( ph -> ( 1 / ( seq M ( x. , F ) ` M ) ) = ( 1 / ( F ` M ) ) )
44	34, 40, 43	3eqtr4d 2208	. . . 4 |- ( ph -> ( seq M ( x. , G ) ` M ) = ( 1 / ( seq M ( x. , F ) ` M ) ) )
45	44	a1i 9	. . 3 |- ( N e. ( ZZ>= ` M ) -> ( ph -> ( seq M ( x. , G ) ` M ) = ( 1 / ( seq M ( x. , F ) ` M ) ) ) )
46		oveq1 5849	. . . . . . . . 9 |- ( ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) -> ( ( seq M ( x. , G ) ` n ) x. ( G ` ( n + 1 ) ) ) = ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( G ` ( n + 1 ) ) ) )
47	46	3ad2ant3 1010	. . . . . . . 8 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( ( seq M ( x. , G ) ` n ) x. ( G ` ( n + 1 ) ) ) = ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( G ` ( n + 1 ) ) ) )
48		fzofzp1 10162	. . . . . . . . . . . . 13 |- ( n e. ( M..^ N ) -> ( n + 1 ) e. ( M ... N ) )
49		fveq2 5486	. . . . . . . . . . . . . . . 16 |- ( k = ( n + 1 ) -> ( G ` k ) = ( G ` ( n + 1 ) ) )
50		fveq2 5486	. . . . . . . . . . . . . . . . 17 |- ( k = ( n + 1 ) -> ( F ` k ) = ( F ` ( n + 1 ) ) )
51	50	oveq2d 5858	. . . . . . . . . . . . . . . 16 |- ( k = ( n + 1 ) -> ( 1 / ( F ` k ) ) = ( 1 / ( F ` ( n + 1 ) ) ) )
52	49, 51	eqeq12d 2180	. . . . . . . . . . . . . . 15 |- ( k = ( n + 1 ) -> ( ( G ` k ) = ( 1 / ( F ` k ) ) <-> ( G ` ( n + 1 ) ) = ( 1 / ( F ` ( n + 1 ) ) ) ) )
53	52	imbi2d 229	. . . . . . . . . . . . . 14 |- ( k = ( n + 1 ) -> ( ( ph -> ( G ` k ) = ( 1 / ( F ` k ) ) ) <-> ( ph -> ( G ` ( n + 1 ) ) = ( 1 / ( F ` ( n + 1 ) ) ) ) ) )
54	53, 32	vtoclga 2792	. . . . . . . . . . . . 13 |- ( ( n + 1 ) e. ( M ... N ) -> ( ph -> ( G ` ( n + 1 ) ) = ( 1 / ( F ` ( n + 1 ) ) ) ) )
55	48, 54	syl 14	. . . . . . . . . . . 12 |- ( n e. ( M..^ N ) -> ( ph -> ( G ` ( n + 1 ) ) = ( 1 / ( F ` ( n + 1 ) ) ) ) )
56	55	impcom 124	. . . . . . . . . . 11 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( G ` ( n + 1 ) ) = ( 1 / ( F ` ( n + 1 ) ) ) )
57	56	oveq2d 5858	. . . . . . . . . 10 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( G ` ( n + 1 ) ) ) = ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( 1 / ( F ` ( n + 1 ) ) ) ) )
58		1cnd 7915	. . . . . . . . . . . 12 |- ( ( ph /\ n e. ( M..^ N ) ) -> 1 e. CC )
59		eqid 2165	. . . . . . . . . . . . . . 15 |- ( ZZ>= ` M ) = ( ZZ>= ` M )
60	59, 36, 41	prodf 11479	. . . . . . . . . . . . . 14 |- ( ph -> seq M ( x. , F ) : ( ZZ>= ` M ) --> CC )
61	60	adantr 274	. . . . . . . . . . . . 13 |- ( ( ph /\ n e. ( M..^ N ) ) -> seq M ( x. , F ) : ( ZZ>= ` M ) --> CC )
62		elfzouz 10086	. . . . . . . . . . . . . 14 |- ( n e. ( M..^ N ) -> n e. ( ZZ>= ` M ) )
63	62	adantl 275	. . . . . . . . . . . . 13 |- ( ( ph /\ n e. ( M..^ N ) ) -> n e. ( ZZ>= ` M ) )
64	61, 63	ffvelrnd 5621	. . . . . . . . . . . 12 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( seq M ( x. , F ) ` n ) e. CC )
65	50	eleq1d 2235	. . . . . . . . . . . . . . . 16 |- ( k = ( n + 1 ) -> ( ( F ` k ) e. CC <-> ( F ` ( n + 1 ) ) e. CC ) )
66	65	imbi2d 229	. . . . . . . . . . . . . . 15 |- ( k = ( n + 1 ) -> ( ( ph -> ( F ` k ) e. CC ) <-> ( ph -> ( F ` ( n + 1 ) ) e. CC ) ) )
67		elfzuz 9956	. . . . . . . . . . . . . . . 16 |- ( k e. ( M ... N ) -> k e. ( ZZ>= ` M ) )
68	41	expcom 115	. . . . . . . . . . . . . . . 16 |- ( k e. ( ZZ>= ` M ) -> ( ph -> ( F ` k ) e. CC ) )
69	67, 68	syl 14	. . . . . . . . . . . . . . 15 |- ( k e. ( M ... N ) -> ( ph -> ( F ` k ) e. CC ) )
70	66, 69	vtoclga 2792	. . . . . . . . . . . . . 14 |- ( ( n + 1 ) e. ( M ... N ) -> ( ph -> ( F ` ( n + 1 ) ) e. CC ) )
71	48, 70	syl 14	. . . . . . . . . . . . 13 |- ( n e. ( M..^ N ) -> ( ph -> ( F ` ( n + 1 ) ) e. CC ) )
72	71	impcom 124	. . . . . . . . . . . 12 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( F ` ( n + 1 ) ) e. CC )
73	41	adantlr 469	. . . . . . . . . . . . 13 |- ( ( ( ph /\ n e. ( M..^ N ) ) /\ k e. ( ZZ>= ` M ) ) -> ( F ` k ) e. CC )
74		elfzouz2 10096	. . . . . . . . . . . . . . . . 17 |- ( n e. ( M..^ N ) -> N e. ( ZZ>= ` n ) )
75		fzss2 9999	. . . . . . . . . . . . . . . . 17 |- ( N e. ( ZZ>= ` n ) -> ( M ... n ) C_ ( M ... N ) )
76	74, 75	syl 14	. . . . . . . . . . . . . . . 16 |- ( n e. ( M..^ N ) -> ( M ... n ) C_ ( M ... N ) )
77	76	sselda 3142	. . . . . . . . . . . . . . 15 |- ( ( n e. ( M..^ N ) /\ k e. ( M ... n ) ) -> k e. ( M ... N ) )
78		prodfap0.3	. . . . . . . . . . . . . . 15 |- ( ( ph /\ k e. ( M ... N ) ) -> ( F ` k ) # 0 )
79	77, 78	sylan2 284	. . . . . . . . . . . . . 14 |- ( ( ph /\ ( n e. ( M..^ N ) /\ k e. ( M ... n ) ) ) -> ( F ` k ) # 0 )
80	79	anassrs 398	. . . . . . . . . . . . 13 |- ( ( ( ph /\ n e. ( M..^ N ) ) /\ k e. ( M ... n ) ) -> ( F ` k ) # 0 )
81	63, 73, 80	prodfap0 11486	. . . . . . . . . . . 12 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( seq M ( x. , F ) ` n ) # 0 )
82	50	breq1d 3992	. . . . . . . . . . . . . . . 16 |- ( k = ( n + 1 ) -> ( ( F ` k ) # 0 <-> ( F ` ( n + 1 ) ) # 0 ) )
83	82	imbi2d 229	. . . . . . . . . . . . . . 15 |- ( k = ( n + 1 ) -> ( ( ph -> ( F ` k ) # 0 ) <-> ( ph -> ( F ` ( n + 1 ) ) # 0 ) ) )
84	78	expcom 115	. . . . . . . . . . . . . . 15 |- ( k e. ( M ... N ) -> ( ph -> ( F ` k ) # 0 ) )
85	83, 84	vtoclga 2792	. . . . . . . . . . . . . 14 |- ( ( n + 1 ) e. ( M ... N ) -> ( ph -> ( F ` ( n + 1 ) ) # 0 ) )
86	48, 85	syl 14	. . . . . . . . . . . . 13 |- ( n e. ( M..^ N ) -> ( ph -> ( F ` ( n + 1 ) ) # 0 ) )
87	86	impcom 124	. . . . . . . . . . . 12 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( F ` ( n + 1 ) ) # 0 )
88	58, 64, 58, 72, 81, 87	divmuldivapd 8728	. . . . . . . . . . 11 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( 1 / ( F ` ( n + 1 ) ) ) ) = ( ( 1 x. 1 ) / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
89		1t1e1 9009	. . . . . . . . . . . 12 |- ( 1 x. 1 ) = 1
90	89	oveq1i 5852	. . . . . . . . . . 11 |- ( ( 1 x. 1 ) / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) )
91	88, 90	eqtrdi 2215	. . . . . . . . . 10 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( 1 / ( F ` ( n + 1 ) ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
92	57, 91	eqtrd 2198	. . . . . . . . 9 |- ( ( ph /\ n e. ( M..^ N ) ) -> ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( G ` ( n + 1 ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
93	92	3adant3 1007	. . . . . . . 8 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( ( 1 / ( seq M ( x. , F ) ` n ) ) x. ( G ` ( n + 1 ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
94	47, 93	eqtrd 2198	. . . . . . 7 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( ( seq M ( x. , G ) ` n ) x. ( G ` ( n + 1 ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
95	63	3adant3 1007	. . . . . . . 8 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> n e. ( ZZ>= ` M ) )
96	37	3ad2antl1 1149	. . . . . . . 8 |- ( ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) /\ k e. ( ZZ>= ` M ) ) -> ( G ` k ) e. CC )
97	38	adantl 275	. . . . . . . 8 |- ( ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) /\ ( k e. CC /\ v e. CC ) ) -> ( k x. v ) e. CC )
98	95, 96, 97	seq3p1 10397	. . . . . . 7 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( ( seq M ( x. , G ) ` n ) x. ( G ` ( n + 1 ) ) ) )
99	41	3ad2antl1 1149	. . . . . . . . 9 |- ( ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) /\ k e. ( ZZ>= ` M ) ) -> ( F ` k ) e. CC )
100	95, 99, 97	seq3p1 10397	. . . . . . . 8 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( seq M ( x. , F ) ` ( n + 1 ) ) = ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) )
101	100	oveq2d 5858	. . . . . . 7 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) = ( 1 / ( ( seq M ( x. , F ) ` n ) x. ( F ` ( n + 1 ) ) ) ) )
102	94, 98, 101	3eqtr4d 2208	. . . . . 6 |- ( ( ph /\ n e. ( M..^ N ) /\ ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) )
103	102	3exp 1192	. . . . 5 |- ( ph -> ( n e. ( M..^ N ) -> ( ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) ) ) )
104	103	com12 30	. . . 4 |- ( n e. ( M..^ N ) -> ( ph -> ( ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) ) ) )
105	104	a2d 26	. . 3 |- ( n e. ( M..^ N ) -> ( ( ph -> ( seq M ( x. , G ) ` n ) = ( 1 / ( seq M ( x. , F ) ` n ) ) ) -> ( ph -> ( seq M ( x. , G ) ` ( n + 1 ) ) = ( 1 / ( seq M ( x. , F ) ` ( n + 1 ) ) ) ) ) )
106	8, 13, 18, 23, 45, 105	fzind2 10174	. 2 |- ( N e. ( M ... N ) -> ( ph -> ( seq M ( x. , G ) ` N ) = ( 1 / ( seq M ( x. , F ) ` N ) ) ) )
107	3, 106	mpcom 36	1 |- ( ph -> ( seq M ( x. , G ) ` N ) = ( 1 / ( seq M ( x. , F ) ` N ) ) )

Syntax hints:   -> wi 4   /\ wa 103   /\ w3a 968   = wceq 1343   e. wcel 2136   C_ wss 3116   class class class wbr 3982   -->wf 5184   ` cfv 5188  (class class class)co 5842   CCcc 7751   0cc0 7753   1c1 7754   + caddc 7756   x. cmul 7758   # cap 8479   / cdiv 8568   ZZcz 9191   ZZ>=cuz 9466   ...cfz 9944  ..^cfzo 10077   seqcseq 10380

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 604  ax-in2 605  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-coll 4097  ax-sep 4100  ax-nul 4108  ax-pow 4153  ax-pr 4187  ax-un 4411  ax-setind 4514  ax-iinf 4565  ax-cnex 7844  ax-resscn 7845  ax-1cn 7846  ax-1re 7847  ax-icn 7848  ax-addcl 7849  ax-addrcl 7850  ax-mulcl 7851  ax-mulrcl 7852  ax-addcom 7853  ax-mulcom 7854  ax-addass 7855  ax-mulass 7856  ax-distr 7857  ax-i2m1 7858  ax-0lt1 7859  ax-1rid 7860  ax-0id 7861  ax-rnegex 7862  ax-precex 7863  ax-cnre 7864  ax-pre-ltirr 7865  ax-pre-ltwlin 7866  ax-pre-lttrn 7867  ax-pre-apti 7868  ax-pre-ltadd 7869  ax-pre-mulgt0 7870  ax-pre-mulext 7871

This theorem depends on definitions:  df-bi 116  df-3or 969  df-3an 970  df-tru 1346  df-fal 1349  df-nf 1449  df-sb 1751  df-eu 2017  df-mo 2018  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ne 2337  df-nel 2432  df-ral 2449  df-rex 2450  df-reu 2451  df-rmo 2452  df-rab 2453  df-v 2728  df-sbc 2952  df-csb 3046  df-dif 3118  df-un 3120  df-in 3122  df-ss 3129  df-nul 3410  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-int 3825  df-iun 3868  df-br 3983  df-opab 4044  df-mpt 4045  df-tr 4081  df-id 4271  df-po 4274  df-iso 4275  df-iord 4344  df-on 4346  df-ilim 4347  df-suc 4349  df-iom 4568  df-xp 4610  df-rel 4611  df-cnv 4612  df-co 4613  df-dm 4614  df-rn 4615  df-res 4616  df-ima 4617  df-iota 5153  df-fun 5190  df-fn 5191  df-f 5192  df-f1 5193  df-fo 5194  df-f1o 5195  df-fv 5196  df-riota 5798  df-ov 5845  df-oprab 5846  df-mpo 5847  df-1st 6108  df-2nd 6109  df-recs 6273  df-frec 6359  df-pnf 7935  df-mnf 7936  df-xr 7937  df-ltxr 7938  df-le 7939  df-sub 8071  df-neg 8072  df-reap 8473  df-ap 8480  df-div 8569  df-inn 8858  df-n0 9115  df-z 9192  df-uz 9467  df-fz 9945  df-fzo 10078  df-seqfrec 10381

This theorem is referenced by:  prodfdivap  11488