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Mirrors > Home > ILE Home > Th. List > hashennnuni | Unicode version |
Description: The ordinal size of a set equinumerous to an element of is that element of . (Contributed by Jim Kingdon, 20-Feb-2022.) |
Ref | Expression |
---|---|
hashennnuni |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elun1 3294 | . . . . 5 | |
2 | 1 | adantr 274 | . . . 4 |
3 | endom 6741 | . . . . 5 | |
4 | 3 | adantl 275 | . . . 4 |
5 | breq1 3992 | . . . . 5 | |
6 | 5 | elrab 2886 | . . . 4 |
7 | 2, 4, 6 | sylanbrc 415 | . . 3 |
8 | breq1 3992 | . . . . . . . . . . . 12 | |
9 | 8 | elrab 2886 | . . . . . . . . . . 11 |
10 | 9 | biimpi 119 | . . . . . . . . . 10 |
11 | 10 | adantl 275 | . . . . . . . . 9 |
12 | 11 | simprd 113 | . . . . . . . 8 |
13 | simplr 525 | . . . . . . . . 9 | |
14 | 13 | ensymd 6761 | . . . . . . . 8 |
15 | domentr 6769 | . . . . . . . 8 | |
16 | 12, 14, 15 | syl2anc 409 | . . . . . . 7 |
17 | 16 | adantr 274 | . . . . . 6 |
18 | simpr 109 | . . . . . . 7 | |
19 | simplll 528 | . . . . . . 7 | |
20 | nndomo 6842 | . . . . . . 7 | |
21 | 18, 19, 20 | syl2anc 409 | . . . . . 6 |
22 | 17, 21 | mpbid 146 | . . . . 5 |
23 | nnfi 6850 | . . . . . . . 8 | |
24 | 23 | ad3antrrr 489 | . . . . . . 7 |
25 | 14 | adantr 274 | . . . . . . 7 |
26 | enfii 6852 | . . . . . . 7 | |
27 | 24, 25, 26 | syl2anc 409 | . . . . . 6 |
28 | 12 | adantr 274 | . . . . . . . 8 |
29 | elsni 3601 | . . . . . . . . . 10 | |
30 | 29 | breq1d 3999 | . . . . . . . . 9 |
31 | 30 | adantl 275 | . . . . . . . 8 |
32 | 28, 31 | mpbid 146 | . . . . . . 7 |
33 | infnfi 6873 | . . . . . . 7 | |
34 | 32, 33 | syl 14 | . . . . . 6 |
35 | 27, 34 | pm2.21dd 615 | . . . . 5 |
36 | 11 | simpld 111 | . . . . . 6 |
37 | elun 3268 | . . . . . 6 | |
38 | 36, 37 | sylib 121 | . . . . 5 |
39 | 22, 35, 38 | mpjaodan 793 | . . . 4 |
40 | 39 | ralrimiva 2543 | . . 3 |
41 | ssunieq 3829 | . . 3 | |
42 | 7, 40, 41 | syl2anc 409 | . 2 |
43 | 42 | eqcomd 2176 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wo 703 wceq 1348 wcel 2141 wral 2448 crab 2452 cun 3119 wss 3121 csn 3583 cuni 3796 class class class wbr 3989 com 4574 cen 6716 cdom 6717 cfn 6718 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-nul 4115 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-iinf 4572 |
This theorem depends on definitions: df-bi 116 df-dc 830 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-ral 2453 df-rex 2454 df-rab 2457 df-v 2732 df-sbc 2956 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-br 3990 df-opab 4051 df-tr 4088 df-id 4278 df-iord 4351 df-on 4353 df-suc 4356 df-iom 4575 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-er 6513 df-en 6719 df-dom 6720 df-fin 6721 |
This theorem is referenced by: hashennn 10714 |
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