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Mirrors > Home > MPE Home > Th. List > nnon | Structured version Visualization version Unicode version |
Description: A natural number is an ordinal number. (Contributed by NM, 27-Jun-1994.) |
Ref | Expression |
---|---|
nnon |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | omsson 7069 | . 2 | |
2 | 1 | sseli 3599 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wcel 1990 con0 5723 com 7065 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-tr 4753 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-om 7066 |
This theorem is referenced by: nnoni 7072 nnord 7073 peano4 7088 findsg 7093 onasuc 7608 onmsuc 7609 nna0 7684 nnm0 7685 nnasuc 7686 nnmsuc 7687 nnesuc 7688 nnecl 7693 nnawordi 7701 nnmword 7713 nnawordex 7717 nnaordex 7718 oaabslem 7723 oaabs 7724 oaabs2 7725 omabslem 7726 omabs 7727 nnneo 7731 nneob 7732 onfin2 8152 findcard3 8203 dffi3 8337 card2inf 8460 elom3 8545 cantnfp1lem3 8577 cnfcomlem 8596 cnfcom 8597 cnfcom3 8601 finnum 8774 cardnn 8789 nnsdomel 8816 nnacda 9023 ficardun2 9025 ackbij1lem15 9056 ackbij2lem2 9062 ackbij2lem3 9063 ackbij2 9065 fin23lem22 9149 isf32lem5 9179 fin1a2lem4 9225 fin1a2lem9 9230 pwfseqlem3 9482 winainflem 9515 wunr1om 9541 tskr1om 9589 grothomex 9651 pion 9701 om2uzlt2i 12750 bnj168 30798 elhf2 32282 findreccl 32452 rdgeqoa 33218 finxpreclem4 33231 finxpreclem6 33233 harinf 37601 |
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