![]() |
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 6419 | . 2 ⊢ 1o ∈ On | |
2 | 1 | elexi 2749 | 1 ⊢ 1o ∈ V |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2148 Vcvv 2737 Oncon0 4361 1oc1o 6405 |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4119 ax-nul 4127 ax-pow 4172 ax-pr 4207 ax-un 4431 |
This theorem depends on definitions: df-bi 117 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-rex 2461 df-v 2739 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-nul 3423 df-pw 3577 df-sn 3598 df-pr 3599 df-uni 3809 df-tr 4100 df-iord 4364 df-on 4366 df-suc 4369 df-1o 6412 |
This theorem is referenced by: 1lt2o 6438 map1 6807 1domsn 6814 pw1fin 6905 djuexb 7038 djurclr 7044 djurcl 7046 djurf1or 7051 djurf1o 7053 djuss 7064 infnninf 7117 infnninfOLD 7118 ismkvnex 7148 dju1p1e2 7191 exmidfodomrlemr 7196 exmidfodomrlemrALT 7197 djucomen 7210 djuassen 7211 pw1on 7220 pw1nel3 7225 sucpw1ne3 7226 sucpw1nel3 7227 indpi 7336 prarloclemlt 7487 fxnn0nninf 10431 inftonninf 10434 enctlem 12423 djurclALT 14325 fmelpw1o 14329 bj-charfun 14330 pwle2 14519 pw1nct 14523 |
Copyright terms: Public domain | W3C validator |