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Mirrors > Home > ILE Home > Th. List > nnnninf | Unicode version |
Description: Elements of ℕ∞ corresponding to natural numbers. The natural number corresponds to a sequence of ones followed by zeroes. Contrast to a sequence which is all ones as seen at infnninf 7022. Remark/TODO: the theorem still holds if , that is, the antecedent could be weakened to . (Contributed by Jim Kingdon, 14-Jul-2022.) |
Ref | Expression |
---|---|
nnnninf | ℕ∞ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1oex 6321 | . . . . . . . 8 | |
2 | 1 | sucid 4339 | . . . . . . 7 |
3 | df-2o 6314 | . . . . . . 7 | |
4 | 2, 3 | eleqtrri 2215 | . . . . . 6 |
5 | 4 | a1i 9 | . . . . 5 |
6 | 2on0 6323 | . . . . . . 7 | |
7 | 2onn 6417 | . . . . . . . 8 | |
8 | nn0eln0 4533 | . . . . . . . 8 | |
9 | 7, 8 | ax-mp 5 | . . . . . . 7 |
10 | 6, 9 | mpbir 145 | . . . . . 6 |
11 | 10 | a1i 9 | . . . . 5 |
12 | nndcel 6396 | . . . . . 6 DECID | |
13 | 12 | ancoms 266 | . . . . 5 DECID |
14 | 5, 11, 13 | ifcldcd 3507 | . . . 4 |
15 | eqid 2139 | . . . 4 | |
16 | 14, 15 | fmptd 5574 | . . 3 |
17 | 7 | elexi 2698 | . . . 4 |
18 | omex 4507 | . . . 4 | |
19 | 17, 18 | elmap 6571 | . . 3 |
20 | 16, 19 | sylibr 133 | . 2 |
21 | ssid 3117 | . . . . . . . . 9 | |
22 | iftrue 3479 | . . . . . . . . . . 11 | |
23 | 22 | sseq1d 3126 | . . . . . . . . . 10 |
24 | 23 | adantl 275 | . . . . . . . . 9 |
25 | 21, 24 | mpbiri 167 | . . . . . . . 8 |
26 | 0ss 3401 | . . . . . . . . 9 | |
27 | iffalse 3482 | . . . . . . . . . . 11 | |
28 | 27 | sseq1d 3126 | . . . . . . . . . 10 |
29 | 28 | adantl 275 | . . . . . . . . 9 |
30 | 26, 29 | mpbiri 167 | . . . . . . . 8 |
31 | peano2 4509 | . . . . . . . . . . 11 | |
32 | 31 | adantl 275 | . . . . . . . . . 10 |
33 | simpl 108 | . . . . . . . . . 10 | |
34 | nndcel 6396 | . . . . . . . . . 10 DECID | |
35 | 32, 33, 34 | syl2anc 408 | . . . . . . . . 9 DECID |
36 | exmiddc 821 | . . . . . . . . 9 DECID | |
37 | 35, 36 | syl 14 | . . . . . . . 8 |
38 | 25, 30, 37 | mpjaodan 787 | . . . . . . 7 |
39 | 38 | adantr 274 | . . . . . 6 |
40 | iftrue 3479 | . . . . . . 7 | |
41 | 40 | adantl 275 | . . . . . 6 |
42 | 39, 41 | sseqtrrd 3136 | . . . . 5 |
43 | ssid 3117 | . . . . . . 7 | |
44 | 43 | a1i 9 | . . . . . 6 |
45 | nnord 4525 | . . . . . . . . . . . 12 | |
46 | ordtr 4300 | . . . . . . . . . . . 12 | |
47 | 45, 46 | syl 14 | . . . . . . . . . . 11 |
48 | trsuc 4344 | . . . . . . . . . . 11 | |
49 | 47, 48 | sylan 281 | . . . . . . . . . 10 |
50 | 49 | ex 114 | . . . . . . . . 9 |
51 | 50 | adantr 274 | . . . . . . . 8 |
52 | 51 | con3dimp 624 | . . . . . . 7 |
53 | 52, 27 | syl 14 | . . . . . 6 |
54 | iffalse 3482 | . . . . . . 7 | |
55 | 54 | adantl 275 | . . . . . 6 |
56 | 44, 53, 55 | 3sstr4d 3142 | . . . . 5 |
57 | nndcel 6396 | . . . . . . 7 DECID | |
58 | 57 | ancoms 266 | . . . . . 6 DECID |
59 | exmiddc 821 | . . . . . 6 DECID | |
60 | 58, 59 | syl 14 | . . . . 5 |
61 | 42, 56, 60 | mpjaodan 787 | . . . 4 |
62 | 4 | a1i 9 | . . . . . 6 |
63 | 10 | a1i 9 | . . . . . 6 |
64 | 62, 63, 35 | ifcldcd 3507 | . . . . 5 |
65 | eleq1 2202 | . . . . . . 7 | |
66 | 65 | ifbid 3493 | . . . . . 6 |
67 | 66, 15 | fvmptg 5497 | . . . . 5 |
68 | 32, 64, 67 | syl2anc 408 | . . . 4 |
69 | simpr 109 | . . . . 5 | |
70 | 62, 63, 58 | ifcldcd 3507 | . . . . 5 |
71 | eleq1 2202 | . . . . . . 7 | |
72 | 71 | ifbid 3493 | . . . . . 6 |
73 | 72, 15 | fvmptg 5497 | . . . . 5 |
74 | 69, 70, 73 | syl2anc 408 | . . . 4 |
75 | 61, 68, 74 | 3sstr4d 3142 | . . 3 |
76 | 75 | ralrimiva 2505 | . 2 |
77 | fveq1 5420 | . . . . 5 | |
78 | fveq1 5420 | . . . . 5 | |
79 | 77, 78 | sseq12d 3128 | . . . 4 |
80 | 79 | ralbidv 2437 | . . 3 |
81 | df-nninf 7007 | . . 3 ℕ∞ | |
82 | 80, 81 | elrab2 2843 | . 2 ℕ∞ |
83 | 20, 76, 82 | sylanbrc 413 | 1 ℕ∞ |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wo 697 DECID wdc 819 wceq 1331 wcel 1480 wne 2308 wral 2416 wss 3071 c0 3363 cif 3474 cmpt 3989 wtr 4026 word 4284 csuc 4287 com 4504 wf 5119 cfv 5123 (class class class)co 5774 c1o 6306 c2o 6307 cmap 6542 ℕ∞xnninf 7005 |
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 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-iinf 4502 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-sbc 2910 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-if 3475 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-mpt 3991 df-tr 4027 df-id 4215 df-iord 4288 df-on 4290 df-suc 4293 df-iom 4505 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-fv 5131 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1o 6313 df-2o 6314 df-map 6544 df-nninf 7007 |
This theorem is referenced by: fnn0nninf 10210 nninfsellemdc 13206 nninfsellemqall 13211 nninffeq 13216 |
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