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| Mirrors > Home > ILE Home > Th. List > Mathboxes > 0nninf | Unicode version | ||
| Description: The zero element of
ℕ∞ (the constant sequence equal to |
| Ref | Expression |
|---|---|
| 0nninf |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0lt2o 6604 |
. . . 4
| |
| 2 | 1 | fconst6 5533 |
. . 3
|
| 3 | 2onn 6684 |
. . . . 5
| |
| 4 | 3 | elexi 2813 |
. . . 4
|
| 5 | omex 4689 |
. . . 4
| |
| 6 | 4, 5 | elmap 6841 |
. . 3
|
| 7 | 2, 6 | mpbir 146 |
. 2
|
| 8 | peano2 4691 |
. . . . . 6
| |
| 9 | 0ex 4214 |
. . . . . . 7
| |
| 10 | 9 | fvconst2 5865 |
. . . . . 6
|
| 11 | 8, 10 | syl 14 |
. . . . 5
|
| 12 | 9 | fvconst2 5865 |
. . . . 5
|
| 13 | 11, 12 | eqtr4d 2265 |
. . . 4
|
| 14 | eqimss 3279 |
. . . 4
| |
| 15 | 13, 14 | syl 14 |
. . 3
|
| 16 | 15 | rgen 2583 |
. 2
|
| 17 | fveq1 5634 |
. . . . 5
| |
| 18 | fveq1 5634 |
. . . . 5
| |
| 19 | 17, 18 | sseq12d 3256 |
. . . 4
|
| 20 | 19 | ralbidv 2530 |
. . 3
|
| 21 | df-nninf 7310 |
. . 3
| |
| 22 | 20, 21 | elrab2 2963 |
. 2
|
| 23 | 7, 16, 22 | mpbir2an 948 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-nul 4213 ax-pow 4262 ax-pr 4297 ax-un 4528 ax-setind 4633 ax-iinf 4684 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-nul 3493 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-int 3927 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-suc 4466 df-iom 4687 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-fv 5332 df-ov 6016 df-oprab 6017 df-mpo 6018 df-1o 6577 df-2o 6578 df-map 6814 df-nninf 7310 |
| This theorem is referenced by: exmidsbthrlem 16562 |
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