| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > 1oex | GIF version | ||
| Description: Ordinal 1 is a set. (Contributed by BJ, 4-Jul-2022.) |
| Ref | Expression |
|---|---|
| 1oex | ⊢ 1o ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1on 6588 | . 2 ⊢ 1o ∈ On | |
| 2 | 1 | elexi 2815 | 1 ⊢ 1o ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 Vcvv 2802 Oncon0 4460 1oc1o 6574 |
| 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 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 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-uni 3894 df-tr 4188 df-iord 4463 df-on 4465 df-suc 4468 df-1o 6581 |
| This theorem is referenced by: 2oex 6598 1lt2o 6609 map1 6986 modom 6993 rex2dom 6995 1domsn 7000 pw1fin 7101 exmidpw2en 7103 djuexb 7242 djurclr 7248 djurcl 7250 djurf1or 7255 djurf1o 7257 djuss 7268 infnninf 7322 infnninfOLD 7323 ismkvnex 7353 pr2cv1 7399 dju1p1e2 7407 exmidfodomrlemr 7412 exmidfodomrlemrALT 7413 djucomen 7430 djuassen 7431 pw1on 7443 pw1nel3 7448 sucpw1ne3 7449 sucpw1nel3 7450 fmelpw1o 7464 indpi 7561 prarloclemlt 7712 fxnn0nninf 10700 inftonninf 10703 nninfctlemfo 12610 nninfct 12611 enctlem 13052 fnpr2ob 13422 xpsfrnel 13426 djurclALT 16398 bj-charfun 16402 pw1map 16596 pw1mapen 16597 pwle2 16599 pw1nct 16604 pw1dceq 16605 nnnninfex 16624 nninfnfiinf 16625 |
| Copyright terms: Public domain | W3C validator |