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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 6608 |
. . . 4
| |
| 2 | 1 | fconst6 5536 |
. . 3
|
| 3 | 2onn 6688 |
. . . . 5
| |
| 4 | 3 | elexi 2815 |
. . . 4
|
| 5 | omex 4691 |
. . . 4
| |
| 6 | 4, 5 | elmap 6845 |
. . 3
|
| 7 | 2, 6 | mpbir 146 |
. 2
|
| 8 | peano2 4693 |
. . . . . 6
| |
| 9 | 0ex 4216 |
. . . . . . 7
| |
| 10 | 9 | fvconst2 5869 |
. . . . . 6
|
| 11 | 8, 10 | syl 14 |
. . . . 5
|
| 12 | 9 | fvconst2 5869 |
. . . . 5
|
| 13 | 11, 12 | eqtr4d 2267 |
. . . 4
|
| 14 | eqimss 3281 |
. . . 4
| |
| 15 | 13, 14 | syl 14 |
. . 3
|
| 16 | 15 | rgen 2585 |
. 2
|
| 17 | fveq1 5638 |
. . . . 5
| |
| 18 | fveq1 5638 |
. . . . 5
| |
| 19 | 17, 18 | sseq12d 3258 |
. . . 4
|
| 20 | 19 | ralbidv 2532 |
. . 3
|
| 21 | df-nninf 7318 |
. . 3
| |
| 22 | 20, 21 | elrab2 2965 |
. 2
|
| 23 | 7, 16, 22 | mpbir2an 950 |
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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-nul 4215 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-iinf 4686 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-suc 4468 df-iom 4689 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-fv 5334 df-ov 6020 df-oprab 6021 df-mpo 6022 df-1o 6581 df-2o 6582 df-map 6818 df-nninf 7318 |
| This theorem is referenced by: exmidsbthrlem 16626 |
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