![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
Mirrors > Home > MPE Home > Th. List > rankelun | Unicode version |
Description: Rank membership is inherited by union. (Contributed by NM, 18-Sep-2006.) (Proof shortened by Mario Carneiro, 17-Nov-2014.) |
Ref | Expression |
---|---|
rankelun.1 | |
rankelun.2 | |
rankelun.3 | |
rankelun.4 |
Ref | Expression |
---|---|
rankelun |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rankon 8234 | . . . . . 6 | |
2 | rankon 8234 | . . . . . 6 | |
3 | 1, 2 | onun2i 4998 | . . . . 5 |
4 | 3 | onordi 4987 | . . . 4 |
5 | 4 | a1i 11 | . . 3 |
6 | elun1 3670 | . . . 4 | |
7 | 6 | adantr 465 | . . 3 |
8 | elun2 3671 | . . . 4 | |
9 | 8 | adantl 466 | . . 3 |
10 | ordunel 6662 | . . 3 | |
11 | 5, 7, 9, 10 | syl3anc 1228 | . 2 |
12 | rankelun.1 | . . 3 | |
13 | rankelun.2 | . . 3 | |
14 | 12, 13 | rankun 8295 | . 2 |
15 | rankelun.3 | . . 3 | |
16 | rankelun.4 | . . 3 | |
17 | 15, 16 | rankun 8295 | . 2 |
18 | 11, 14, 17 | 3eltr4g 2563 | 1 |
Colors of variables: wff setvar class |
Syntax hints: -> wi 4 /\ wa 369
e. wcel 1818 cvv 3109
u. cun 3473 Ord word 4882 ` cfv 5593
crnk 8202 |
This theorem is referenced by: rankelpr 8312 rankxplim 8318 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1618 ax-4 1631 ax-5 1704 ax-6 1747 ax-7 1790 ax-8 1820 ax-9 1822 ax-10 1837 ax-11 1842 ax-12 1854 ax-13 1999 ax-ext 2435 ax-rep 4563 ax-sep 4573 ax-nul 4581 ax-pow 4630 ax-pr 4691 ax-un 6592 ax-reg 8039 ax-inf2 8079 |
This theorem depends on definitions: df-bi 185 df-or 370 df-an 371 df-3or 974 df-3an 975 df-tru 1398 df-ex 1613 df-nf 1617 df-sb 1740 df-eu 2286 df-mo 2287 df-clab 2443 df-cleq 2449 df-clel 2452 df-nfc 2607 df-ne 2654 df-ral 2812 df-rex 2813 df-reu 2814 df-rab 2816 df-v 3111 df-sbc 3328 df-csb 3435 df-dif 3478 df-un 3480 df-in 3482 df-ss 3489 df-pss 3491 df-nul 3785 df-if 3942 df-pw 4014 df-sn 4030 df-pr 4032 df-tp 4034 df-op 4036 df-uni 4250 df-int 4287 df-iun 4332 df-br 4453 df-opab 4511 df-mpt 4512 df-tr 4546 df-eprel 4796 df-id 4800 df-po 4805 df-so 4806 df-fr 4843 df-we 4845 df-ord 4886 df-on 4887 df-lim 4888 df-suc 4889 df-xp 5010 df-rel 5011 df-cnv 5012 df-co 5013 df-dm 5014 df-rn 5015 df-res 5016 df-ima 5017 df-iota 5556 df-fun 5595 df-fn 5596 df-f 5597 df-f1 5598 df-fo 5599 df-f1o 5600 df-fv 5601 df-om 6701 df-recs 7061 df-rdg 7095 df-r1 8203 df-rank 8204 |
Copyright terms: Public domain | W3C validator |