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Mirrors > Home > ILE Home > Th. List > Mathboxes > nninff | Unicode version |
Description: An element of ℕ∞ is a sequence of zeroes and ones. (Contributed by Jim Kingdon, 4-Aug-2022.) |
Ref | Expression |
---|---|
nninff | ℕ∞ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveq1 5420 | . . . . . 6 | |
2 | fveq1 5420 | . . . . . 6 | |
3 | 1, 2 | sseq12d 3128 | . . . . 5 |
4 | 3 | ralbidv 2437 | . . . 4 |
5 | df-nninf 7007 | . . . 4 ℕ∞ | |
6 | 4, 5 | elrab2 2843 | . . 3 ℕ∞ |
7 | 6 | simplbi 272 | . 2 ℕ∞ |
8 | elmapi 6564 | . 2 | |
9 | 7, 8 | syl 14 | 1 ℕ∞ |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1331 wcel 1480 wral 2416 wss 3071 csuc 4287 com 4504 wf 5119 cfv 5123 (class class class)co 5774 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-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 |
This theorem depends on definitions: df-bi 116 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-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 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-map 6544 df-nninf 7007 |
This theorem is referenced by: nnsf 13199 peano4nninf 13200 nninfalllemn 13202 nninfall 13204 nninfsellemeqinf 13212 |
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