Step | Hyp | Ref
| Expression |
1 | | simpr 486 |
. . . . . . . . 9
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π β
(β0 βm π)) |
2 | | nn0ex 12475 |
. . . . . . . . . 10
β’
β0 β V |
3 | | simp1 1137 |
. . . . . . . . . . 11
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β π β V) |
4 | 3 | adantr 482 |
. . . . . . . . . 10
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π β
V) |
5 | | elmapg 8830 |
. . . . . . . . . 10
β’
((β0 β V β§ π β V) β (π β (β0
βm π)
β π:πβΆβ0)) |
6 | 2, 4, 5 | sylancr 588 |
. . . . . . . . 9
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β
(β0 βm π) β π:πβΆβ0)) |
7 | 1, 6 | mpbid 231 |
. . . . . . . 8
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π:πβΆβ0) |
8 | 7 | adantr 482 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π:πβΆβ0) |
9 | | simp2 1138 |
. . . . . . . . 9
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β π:πβ1-1βπ) |
10 | | f1f 6785 |
. . . . . . . . 9
β’ (π:πβ1-1βπ β π:πβΆπ) |
11 | 9, 10 | syl 17 |
. . . . . . . 8
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β π:πβΆπ) |
12 | 11 | ad2antrr 725 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π:πβΆπ) |
13 | | fco 6739 |
. . . . . . 7
β’ ((π:πβΆβ0 β§ π:πβΆπ) β (π β π):πβΆβ0) |
14 | 8, 12, 13 | syl2anc 585 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (π β π):πβΆβ0) |
15 | | f1dmex 7940 |
. . . . . . . . 9
β’ ((π:πβ1-1βπ β§ π β V) β π β V) |
16 | 9, 3, 15 | syl2anc 585 |
. . . . . . . 8
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β π β V) |
17 | 16 | ad2antrr 725 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π β V) |
18 | | elmapg 8830 |
. . . . . . 7
β’
((β0 β V β§ π β V) β ((π β π) β (β0
βm π)
β (π β π):πβΆβ0)) |
19 | 2, 17, 18 | sylancr 588 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β ((π β π) β (β0
βm π)
β (π β π):πβΆβ0)) |
20 | 14, 19 | mpbird 257 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (π β π) β (β0
βm π)) |
21 | | simprl 770 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π = (π βΎ π)) |
22 | | resco 6247 |
. . . . . . 7
β’ ((π β π) βΎ π) = (π β (π βΎ π)) |
23 | | simpll3 1215 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (π βΎ π) = ( I βΎ π)) |
24 | 23 | coeq2d 5861 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (π β (π βΎ π)) = (π β ( I βΎ π))) |
25 | | coires1 6261 |
. . . . . . . 8
β’ (π β ( I βΎ π)) = (π βΎ π) |
26 | 24, 25 | eqtrdi 2789 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (π β (π βΎ π)) = (π βΎ π)) |
27 | 22, 26 | eqtrid 2785 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β ((π β π) βΎ π) = (π βΎ π)) |
28 | 21, 27 | eqtr4d 2776 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π = ((π β π) βΎ π)) |
29 | | simpll1 1213 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π β V) |
30 | | oveq2 7414 |
. . . . . . . . . . 11
β’ (π = π β (β0
βm π) =
(β0 βm π)) |
31 | | oveq2 7414 |
. . . . . . . . . . 11
β’ (π = π β (β€ βm π) = (β€ βm
π)) |
32 | 30, 31 | sseq12d 4015 |
. . . . . . . . . 10
β’ (π = π β ((β0
βm π)
β (β€ βm π) β (β0
βm π)
β (β€ βm π))) |
33 | | zex 12564 |
. . . . . . . . . . 11
β’ β€
β V |
34 | | nn0ssz 12578 |
. . . . . . . . . . 11
β’
β0 β β€ |
35 | | mapss 8880 |
. . . . . . . . . . 11
β’ ((β€
β V β§ β0 β β€) β (β0
βm π)
β (β€ βm π)) |
36 | 33, 34, 35 | mp2an 691 |
. . . . . . . . . 10
β’
(β0 βm π) β (β€ βm π) |
37 | 32, 36 | vtoclg 3557 |
. . . . . . . . 9
β’ (π β V β
(β0 βm π) β (β€ βm π)) |
38 | 29, 37 | syl 17 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (β0
βm π)
β (β€ βm π)) |
39 | | simplr 768 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π β (β0
βm π)) |
40 | 38, 39 | sseldd 3983 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β π β (β€ βm π)) |
41 | | coeq1 5856 |
. . . . . . . . 9
β’ (π = π β (π β π) = (π β π)) |
42 | 41 | fveq2d 6893 |
. . . . . . . 8
β’ (π = π β (πβ(π β π)) = (πβ(π β π))) |
43 | | eqid 2733 |
. . . . . . . 8
β’ (π β (β€
βm π)
β¦ (πβ(π β π))) = (π β (β€ βm π) β¦ (πβ(π β π))) |
44 | | fvex 6902 |
. . . . . . . 8
β’ (πβ(π β π)) β V |
45 | 42, 43, 44 | fvmpt 6996 |
. . . . . . 7
β’ (π β (β€
βm π)
β ((π β (β€
βm π)
β¦ (πβ(π β π)))βπ) = (πβ(π β π))) |
46 | 40, 45 | syl 17 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = (πβ(π β π))) |
47 | | simprr 772 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0) |
48 | 46, 47 | eqtr3d 2775 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β (πβ(π β π)) = 0) |
49 | | reseq1 5974 |
. . . . . . . 8
β’ (π = (π β π) β (π βΎ π) = ((π β π) βΎ π)) |
50 | 49 | eqeq2d 2744 |
. . . . . . 7
β’ (π = (π β π) β (π = (π βΎ π) β π = ((π β π) βΎ π))) |
51 | | fveqeq2 6898 |
. . . . . . 7
β’ (π = (π β π) β ((πβπ) = 0 β (πβ(π β π)) = 0)) |
52 | 50, 51 | anbi12d 632 |
. . . . . 6
β’ (π = (π β π) β ((π = (π βΎ π) β§ (πβπ) = 0) β (π = ((π β π) βΎ π) β§ (πβ(π β π)) = 0))) |
53 | 52 | rspcev 3613 |
. . . . 5
β’ (((π β π) β (β0
βm π) β§
(π = ((π β π) βΎ π) β§ (πβ(π β π)) = 0)) β βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0)) |
54 | 20, 28, 48, 53 | syl12anc 836 |
. . . 4
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) β βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0)) |
55 | 54 | rexlimdva2 3158 |
. . 3
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β (βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0) β βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0))) |
56 | | simpr 486 |
. . . . . . . . . . 11
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π β
(β0 βm π)) |
57 | 16 | adantr 482 |
. . . . . . . . . . . 12
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π β
V) |
58 | | elmapg 8830 |
. . . . . . . . . . . 12
β’
((β0 β V β§ π β V) β (π β (β0
βm π)
β π:πβΆβ0)) |
59 | 2, 57, 58 | sylancr 588 |
. . . . . . . . . . 11
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β
(β0 βm π) β π:πβΆβ0)) |
60 | 56, 59 | mpbid 231 |
. . . . . . . . . 10
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π:πβΆβ0) |
61 | 60 | adantr 482 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β π:πβΆβ0) |
62 | 9 | ad2antrr 725 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β π:πβ1-1βπ) |
63 | | f1cnv 6855 |
. . . . . . . . . 10
β’ (π:πβ1-1βπ β β‘π:ran πβ1-1-ontoβπ) |
64 | | f1of 6831 |
. . . . . . . . . 10
β’ (β‘π:ran πβ1-1-ontoβπ β β‘π:ran πβΆπ) |
65 | 62, 63, 64 | 3syl 18 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β β‘π:ran πβΆπ) |
66 | | fco 6739 |
. . . . . . . . 9
β’ ((π:πβΆβ0 β§ β‘π:ran πβΆπ) β (π β β‘π):ran πβΆβ0) |
67 | 61, 65, 66 | syl2anc 585 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (π β β‘π):ran πβΆβ0) |
68 | | c0ex 11205 |
. . . . . . . . . 10
β’ 0 β
V |
69 | 68 | fconst 6775 |
. . . . . . . . 9
β’ ((π β ran π) Γ {0}):(π β ran π)βΆ{0} |
70 | 69 | a1i 11 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β ran π) Γ {0}):(π β ran π)βΆ{0}) |
71 | | disjdif 4471 |
. . . . . . . . 9
β’ (ran
π β© (π β ran π)) = β
|
72 | 71 | a1i 11 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (ran π β© (π β ran π)) = β
) |
73 | | fun 6751 |
. . . . . . . 8
β’ ((((π β β‘π):ran πβΆβ0 β§ ((π β ran π) Γ {0}):(π β ran π)βΆ{0}) β§ (ran π β© (π β ran π)) = β
) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β0 βͺ
{0})) |
74 | 67, 70, 72, 73 | syl21anc 837 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β0 βͺ
{0})) |
75 | | frn 6722 |
. . . . . . . . . . 11
β’ (π:πβΆπ β ran π β π) |
76 | 9, 10, 75 | 3syl 18 |
. . . . . . . . . 10
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β ran π β π) |
77 | 76 | ad2antrr 725 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ran π β π) |
78 | | undif 4481 |
. . . . . . . . 9
β’ (ran
π β π β (ran π βͺ (π β ran π)) = π) |
79 | 77, 78 | sylib 217 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (ran π βͺ (π β ran π)) = π) |
80 | | 0nn0 12484 |
. . . . . . . . . . 11
β’ 0 β
β0 |
81 | | snssi 4811 |
. . . . . . . . . . 11
β’ (0 β
β0 β {0} β β0) |
82 | 80, 81 | ax-mp 5 |
. . . . . . . . . 10
β’ {0}
β β0 |
83 | | ssequn2 4183 |
. . . . . . . . . 10
β’ ({0}
β β0 β (β0 βͺ {0}) =
β0) |
84 | 82, 83 | mpbi 229 |
. . . . . . . . 9
β’
(β0 βͺ {0}) = β0 |
85 | 84 | a1i 11 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (β0 βͺ
{0}) = β0) |
86 | 79, 85 | feq23d 6710 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β0 βͺ {0})
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ0)) |
87 | 74, 86 | mpbid 231 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ0) |
88 | | elmapg 8830 |
. . . . . . . 8
β’
((β0 β V β§ π β V) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β0
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ0)) |
89 | 2, 3, 88 | sylancr 588 |
. . . . . . 7
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β0
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ0)) |
90 | 89 | ad2antrr 725 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β0
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ0)) |
91 | 87, 90 | mpbird 257 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β0
βm π)) |
92 | | simprl 770 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β π = (π βΎ π)) |
93 | | resundir 5995 |
. . . . . . . . 9
β’ (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π) = (((π β β‘π) βΎ π) βͺ (((π β ran π) Γ {0}) βΎ π)) |
94 | | resco 6247 |
. . . . . . . . . . 11
β’ ((π β β‘π) βΎ π) = (π β (β‘π βΎ π)) |
95 | | simpl2 1193 |
. . . . . . . . . . . . . . . 16
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π:πβ1-1βπ) |
96 | | df-f1 6546 |
. . . . . . . . . . . . . . . . 17
β’ (π:πβ1-1βπ β (π:πβΆπ β§ Fun β‘π)) |
97 | 96 | simprbi 498 |
. . . . . . . . . . . . . . . 16
β’ (π:πβ1-1βπ β Fun β‘π) |
98 | | funcnvres 6624 |
. . . . . . . . . . . . . . . 16
β’ (Fun
β‘π β β‘(π βΎ π) = (β‘π βΎ (π β π))) |
99 | 95, 97, 98 | 3syl 18 |
. . . . . . . . . . . . . . 15
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β β‘(π βΎ π) = (β‘π βΎ (π β π))) |
100 | | simpl3 1194 |
. . . . . . . . . . . . . . . 16
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π βΎ π) = ( I βΎ π)) |
101 | 100 | cnveqd 5874 |
. . . . . . . . . . . . . . 15
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β β‘(π βΎ π) = β‘( I βΎ π)) |
102 | | df-ima 5689 |
. . . . . . . . . . . . . . . . 17
β’ (π β π) = ran (π βΎ π) |
103 | 100 | rneqd 5936 |
. . . . . . . . . . . . . . . . . 18
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β ran (π βΎ π) = ran ( I βΎ π)) |
104 | | rnresi 6072 |
. . . . . . . . . . . . . . . . . 18
β’ ran ( I
βΎ π) = π |
105 | 103, 104 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . 17
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β ran (π βΎ π) = π) |
106 | 102, 105 | eqtrid 2785 |
. . . . . . . . . . . . . . . 16
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β π) = π) |
107 | 106 | reseq2d 5980 |
. . . . . . . . . . . . . . 15
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (β‘π βΎ (π β π)) = (β‘π βΎ π)) |
108 | 99, 101, 107 | 3eqtr3d 2781 |
. . . . . . . . . . . . . 14
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β β‘( I βΎ π) = (β‘π βΎ π)) |
109 | | cnvresid 6625 |
. . . . . . . . . . . . . 14
β’ β‘( I βΎ π) = ( I βΎ π) |
110 | 108, 109 | eqtr3di 2788 |
. . . . . . . . . . . . 13
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (β‘π βΎ π) = ( I βΎ π)) |
111 | 110 | coeq2d 5861 |
. . . . . . . . . . . 12
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β (β‘π βΎ π)) = (π β ( I βΎ π))) |
112 | | coires1 6261 |
. . . . . . . . . . . 12
β’ (π β ( I βΎ π)) = (π βΎ π) |
113 | 111, 112 | eqtrdi 2789 |
. . . . . . . . . . 11
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β (β‘π βΎ π)) = (π βΎ π)) |
114 | 94, 113 | eqtrid 2785 |
. . . . . . . . . 10
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β ((π β β‘π) βΎ π) = (π βΎ π)) |
115 | | dmres 6002 |
. . . . . . . . . . . 12
β’ dom
(((π β ran π) Γ {0}) βΎ π) = (π β© dom ((π β ran π) Γ {0})) |
116 | 68 | snnz 4780 |
. . . . . . . . . . . . . . 15
β’ {0} β
β
|
117 | | dmxp 5927 |
. . . . . . . . . . . . . . 15
β’ ({0} β
β
β dom ((π
β ran π) Γ {0})
= (π β ran π)) |
118 | 116, 117 | ax-mp 5 |
. . . . . . . . . . . . . 14
β’ dom
((π β ran π) Γ {0}) = (π β ran π) |
119 | 118 | ineq2i 4209 |
. . . . . . . . . . . . 13
β’ (π β© dom ((π β ran π) Γ {0})) = (π β© (π β ran π)) |
120 | | inss1 4228 |
. . . . . . . . . . . . . . 15
β’ (π β© π) β π |
121 | 103, 104 | eqtr2di 2790 |
. . . . . . . . . . . . . . . 16
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π = ran (π βΎ π)) |
122 | | resss 6005 |
. . . . . . . . . . . . . . . . 17
β’ (π βΎ π) β π |
123 | | rnss 5937 |
. . . . . . . . . . . . . . . . 17
β’ ((π βΎ π) β π β ran (π βΎ π) β ran π) |
124 | 122, 123 | mp1i 13 |
. . . . . . . . . . . . . . . 16
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β ran (π βΎ π) β ran π) |
125 | 121, 124 | eqsstrd 4020 |
. . . . . . . . . . . . . . 15
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π β ran π) |
126 | 120, 125 | sstrid 3993 |
. . . . . . . . . . . . . 14
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β© π) β ran π) |
127 | | inssdif0 4369 |
. . . . . . . . . . . . . 14
β’ ((π β© π) β ran π β (π β© (π β ran π)) = β
) |
128 | 126, 127 | sylib 217 |
. . . . . . . . . . . . 13
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β© (π β ran π)) = β
) |
129 | 119, 128 | eqtrid 2785 |
. . . . . . . . . . . 12
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π β© dom ((π β ran π) Γ {0})) = β
) |
130 | 115, 129 | eqtrid 2785 |
. . . . . . . . . . 11
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β dom (((π β ran
π) Γ {0}) βΎ
π) =
β
) |
131 | | relres 6009 |
. . . . . . . . . . . 12
β’ Rel
(((π β ran π) Γ {0}) βΎ π) |
132 | | reldm0 5926 |
. . . . . . . . . . . 12
β’ (Rel
(((π β ran π) Γ {0}) βΎ π) β ((((π β ran π) Γ {0}) βΎ π) = β
β dom (((π β ran π) Γ {0}) βΎ π) = β
)) |
133 | 131, 132 | ax-mp 5 |
. . . . . . . . . . 11
β’ ((((π β ran π) Γ {0}) βΎ π) = β
β dom (((π β ran π) Γ {0}) βΎ π) = β
) |
134 | 130, 133 | sylibr 233 |
. . . . . . . . . 10
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (((π β ran
π) Γ {0}) βΎ
π) =
β
) |
135 | 114, 134 | uneq12d 4164 |
. . . . . . . . 9
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (((π β β‘π) βΎ π) βͺ (((π β ran π) Γ {0}) βΎ π)) = ((π βΎ π) βͺ β
)) |
136 | 93, 135 | eqtrid 2785 |
. . . . . . . 8
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π) = ((π βΎ π) βͺ β
)) |
137 | | un0 4390 |
. . . . . . . 8
β’ ((π βΎ π) βͺ β
) = (π βΎ π) |
138 | 136, 137 | eqtr2di 2790 |
. . . . . . 7
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β (π βΎ π) = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π)) |
139 | 138 | adantr 482 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (π βΎ π) = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π)) |
140 | 92, 139 | eqtrd 2773 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β π = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π)) |
141 | | fss 6732 |
. . . . . . . . . . . . 13
β’ ((π:πβΆβ0 β§
β0 β β€) β π:πβΆβ€) |
142 | 60, 34, 141 | sylancl 587 |
. . . . . . . . . . . 12
β’ (((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β π:πβΆβ€) |
143 | 142 | adantr 482 |
. . . . . . . . . . 11
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β π:πβΆβ€) |
144 | | fco 6739 |
. . . . . . . . . . 11
β’ ((π:πβΆβ€ β§ β‘π:ran πβΆπ) β (π β β‘π):ran πβΆβ€) |
145 | 143, 65, 144 | syl2anc 585 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (π β β‘π):ran πβΆβ€) |
146 | | fun 6751 |
. . . . . . . . . 10
β’ ((((π β β‘π):ran πβΆβ€ β§ ((π β ran π) Γ {0}):(π β ran π)βΆ{0}) β§ (ran π β© (π β ran π)) = β
) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β€ βͺ
{0})) |
147 | 145, 70, 72, 146 | syl21anc 837 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β€ βͺ
{0})) |
148 | | 0z 12566 |
. . . . . . . . . . . . 13
β’ 0 β
β€ |
149 | | snssi 4811 |
. . . . . . . . . . . . 13
β’ (0 β
β€ β {0} β β€) |
150 | 148, 149 | ax-mp 5 |
. . . . . . . . . . . 12
β’ {0}
β β€ |
151 | | ssequn2 4183 |
. . . . . . . . . . . 12
β’ ({0}
β β€ β (β€ βͺ {0}) = β€) |
152 | 150, 151 | mpbi 229 |
. . . . . . . . . . 11
β’ (β€
βͺ {0}) = β€ |
153 | 152 | a1i 11 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (β€ βͺ {0}) =
β€) |
154 | 79, 153 | feq23d 6710 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})):(ran π βͺ (π β ran π))βΆ(β€ βͺ {0}) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ€)) |
155 | 147, 154 | mpbid 231 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ€) |
156 | | elmapg 8830 |
. . . . . . . . . 10
β’ ((β€
β V β§ π β V)
β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β€
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ€)) |
157 | 33, 3, 156 | sylancr 588 |
. . . . . . . . 9
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β€
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ€)) |
158 | 157 | ad2antrr 725 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β€
βm π)
β ((π β β‘π) βͺ ((π β ran π) Γ {0})):πβΆβ€)) |
159 | 155, 158 | mpbird 257 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β€
βm π)) |
160 | | coeq1 5856 |
. . . . . . . . 9
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (π β π) = (((π β β‘π) βͺ ((π β ran π) Γ {0})) β π)) |
161 | 160 | fveq2d 6893 |
. . . . . . . 8
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (πβ(π β π)) = (πβ(((π β β‘π) βͺ ((π β ran π) Γ {0})) β π))) |
162 | | fvex 6902 |
. . . . . . . 8
β’ (πβ(((π β β‘π) βͺ ((π β ran π) Γ {0})) β π)) β V |
163 | 161, 43, 162 | fvmpt 6996 |
. . . . . . 7
β’ (((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β€
βm π)
β ((π β (β€
βm π)
β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = (πβ(((π β β‘π) βͺ ((π β ran π) Γ {0})) β π))) |
164 | 159, 163 | syl 17 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β (β€ βm π) β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = (πβ(((π β β‘π) βͺ ((π β ran π) Γ {0})) β π))) |
165 | | coundir 6245 |
. . . . . . . 8
β’ (((π β β‘π) βͺ ((π β ran π) Γ {0})) β π) = (((π β β‘π) β π) βͺ (((π β ran π) Γ {0}) β π)) |
166 | | coass 6262 |
. . . . . . . . . . 11
β’ ((π β β‘π) β π) = (π β (β‘π β π)) |
167 | | f1cocnv1 6861 |
. . . . . . . . . . . . 13
β’ (π:πβ1-1βπ β (β‘π β π) = ( I βΎ π)) |
168 | 167 | coeq2d 5861 |
. . . . . . . . . . . 12
β’ (π:πβ1-1βπ β (π β (β‘π β π)) = (π β ( I βΎ π))) |
169 | 62, 168 | syl 17 |
. . . . . . . . . . 11
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (π β (β‘π β π)) = (π β ( I βΎ π))) |
170 | 166, 169 | eqtrid 2785 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β β‘π) β π) = (π β ( I βΎ π))) |
171 | 118 | ineq1i 4208 |
. . . . . . . . . . . . 13
β’ (dom
((π β ran π) Γ {0}) β© ran π) = ((π β ran π) β© ran π) |
172 | | incom 4201 |
. . . . . . . . . . . . 13
β’ ((π β ran π) β© ran π) = (ran π β© (π β ran π)) |
173 | 171, 172,
71 | 3eqtri 2765 |
. . . . . . . . . . . 12
β’ (dom
((π β ran π) Γ {0}) β© ran π) = β
|
174 | | coeq0 6252 |
. . . . . . . . . . . 12
β’ ((((π β ran π) Γ {0}) β π) = β
β (dom ((π β ran π) Γ {0}) β© ran π) = β
) |
175 | 173, 174 | mpbir 230 |
. . . . . . . . . . 11
β’ (((π β ran π) Γ {0}) β π) = β
|
176 | 175 | a1i 11 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β ran π) Γ {0}) β π) = β
) |
177 | 170, 176 | uneq12d 4164 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) β π) βͺ (((π β ran π) Γ {0}) β π)) = ((π β ( I βΎ π)) βͺ β
)) |
178 | | un0 4390 |
. . . . . . . . . 10
β’ ((π β ( I βΎ π)) βͺ β
) = (π β ( I βΎ π)) |
179 | | fcoi1 6763 |
. . . . . . . . . . 11
β’ (π:πβΆβ0 β (π β ( I βΎ π)) = π) |
180 | 61, 179 | syl 17 |
. . . . . . . . . 10
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (π β ( I βΎ π)) = π) |
181 | 178, 180 | eqtrid 2785 |
. . . . . . . . 9
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β ( I βΎ π)) βͺ β
) = π) |
182 | 177, 181 | eqtrd 2773 |
. . . . . . . 8
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) β π) βͺ (((π β ran π) Γ {0}) β π)) = π) |
183 | 165, 182 | eqtrid 2785 |
. . . . . . 7
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (((π β β‘π) βͺ ((π β ran π) Γ {0})) β π) = π) |
184 | 183 | fveq2d 6893 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (πβ(((π β β‘π) βͺ ((π β ran π) Γ {0})) β π)) = (πβπ)) |
185 | | simprr 772 |
. . . . . 6
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β (πβπ) = 0) |
186 | 164, 184,
185 | 3eqtrd 2777 |
. . . . 5
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β ((π β (β€ βm π) β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = 0) |
187 | | reseq1 5974 |
. . . . . . . 8
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (π βΎ π) = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π)) |
188 | 187 | eqeq2d 2744 |
. . . . . . 7
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (π = (π βΎ π) β π = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π))) |
189 | | fveqeq2 6898 |
. . . . . . 7
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β (((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0 β ((π β (β€ βm π) β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = 0)) |
190 | 188, 189 | anbi12d 632 |
. . . . . 6
β’ (π = ((π β β‘π) βͺ ((π β ran π) Γ {0})) β ((π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0) β (π = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = 0))) |
191 | 190 | rspcev 3613 |
. . . . 5
β’ ((((π β β‘π) βͺ ((π β ran π) Γ {0})) β (β0
βm π) β§
(π = (((π β β‘π) βͺ ((π β ran π) Γ {0})) βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))β((π β β‘π) βͺ ((π β ran π) Γ {0}))) = 0)) β βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) |
192 | 91, 140, 186, 191 | syl12anc 836 |
. . . 4
β’ ((((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β§ π β (β0
βm π))
β§ (π = (π βΎ π) β§ (πβπ) = 0)) β βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)) |
193 | 192 | rexlimdva2 3158 |
. . 3
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β (βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0) β βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0))) |
194 | 55, 193 | impbid 211 |
. 2
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β (βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0) β βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0))) |
195 | 194 | abbidv 2802 |
1
β’ ((π β V β§ π:πβ1-1βπ β§ (π βΎ π) = ( I βΎ π)) β {π β£ βπ β (β0
βm π)(π = (π βΎ π) β§ ((π β (β€ βm π) β¦ (πβ(π β π)))βπ) = 0)} = {π β£ βπ β (β0
βm π)(π = (π βΎ π) β§ (πβπ) = 0)}) |