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Related theorems Unicode version |
| Description: A limit ordinal contains the empty set. |
| Ref | Expression |
|---|---|
| 0ellim |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nlim0 3043 |
. . . 4
| |
| 2 | limeq 2976 |
. . . 4
| |
| 3 | 1, 2 | mtbiri 721 |
. . 3
|
| 4 | 3 | necon2ai 1618 |
. 2
|
| 5 | limord 3044 |
. . 3
| |
| 6 | ord0eln0 3039 |
. . 3
| |
| 7 | 5, 6 | syl 10 |
. 2
|
| 8 | 4, 7 | mpbird 196 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: limuni3 3139 peano1 3165 oe1m 4195 oalimcl 4210 oaass 4211 oarec 4212 omlimcl 4225 odi 4226 oen0 4229 oewordri 4235 oelim2 4238 limensuci 4526 rankxplim2 4730 rankxplim3 4731 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 966 ax-gen 967 ax-8 968 ax-10 970 ax-11 971 ax-12 972 ax-13 973 ax-14 974 ax-17 975 ax-4 977 ax-5o 979 ax-6o 982 ax-9o 1127 ax-10o 1144 ax-16 1214 ax-11o 1222 ax-ext 1464 ax-sep 2718 ax-pow 2758 ax-pr 2795 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 780 df-3an 781 df-ex 985 df-sb 1176 df-eu 1386 df-mo 1387 df-clab 1470 df-cleq 1475 df-clel 1478 df-ne 1594 df-ral 1656 df-rex 1657 df-v 1819 df-dif 2060 df-un 2061 df-in 2062 df-ss 2064 df-nul 2292 df-pw 2414 df-sn 2424 df-pr 2425 df-op 2428 df-uni 2518 df-br 2635 df-opab 2682 df-tr 2696 df-eprel 2848 df-po 2856 df-so 2866 df-fr 2933 df-we 2950 df-ord 2967 df-lim 2969 |