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Mirrors > Home > MPE Home > Th. List > rankunb | Structured version Visualization version Unicode version |
Description: The rank of the union of two sets. Theorem 15.17(iii) of [Monk1] p. 112. (Contributed by Mario Carneiro, 10-Jun-2013.) (Revised by Mario Carneiro, 17-Nov-2014.) |
Ref | Expression |
---|---|
rankunb |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | unwf 8673 | . . . . . . 7 | |
2 | rankval3b 8689 | . . . . . . 7 | |
3 | 1, 2 | sylbi 207 | . . . . . 6 |
4 | 3 | eleq2d 2687 | . . . . 5 |
5 | vex 3203 | . . . . . 6 | |
6 | 5 | elintrab 4488 | . . . . 5 |
7 | 4, 6 | syl6bb 276 | . . . 4 |
8 | elun 3753 | . . . . . . 7 | |
9 | rankelb 8687 | . . . . . . . . 9 | |
10 | elun1 3780 | . . . . . . . . 9 | |
11 | 9, 10 | syl6 35 | . . . . . . . 8 |
12 | rankelb 8687 | . . . . . . . . 9 | |
13 | elun2 3781 | . . . . . . . . 9 | |
14 | 12, 13 | syl6 35 | . . . . . . . 8 |
15 | 11, 14 | jaao 531 | . . . . . . 7 |
16 | 8, 15 | syl5bi 232 | . . . . . 6 |
17 | 16 | ralrimiv 2965 | . . . . 5 |
18 | rankon 8658 | . . . . . . 7 | |
19 | rankon 8658 | . . . . . . 7 | |
20 | 18, 19 | onun2i 5843 | . . . . . 6 |
21 | eleq2 2690 | . . . . . . . . 9 | |
22 | 21 | ralbidv 2986 | . . . . . . . 8 |
23 | eleq2 2690 | . . . . . . . 8 | |
24 | 22, 23 | imbi12d 334 | . . . . . . 7 |
25 | 24 | rspcv 3305 | . . . . . 6 |
26 | 20, 25 | ax-mp 5 | . . . . 5 |
27 | 17, 26 | syl5com 31 | . . . 4 |
28 | 7, 27 | sylbid 230 | . . 3 |
29 | 28 | ssrdv 3609 | . 2 |
30 | ssun1 3776 | . . . . 5 | |
31 | rankssb 8711 | . . . . 5 | |
32 | 30, 31 | mpi 20 | . . . 4 |
33 | ssun2 3777 | . . . . 5 | |
34 | rankssb 8711 | . . . . 5 | |
35 | 33, 34 | mpi 20 | . . . 4 |
36 | 32, 35 | unssd 3789 | . . 3 |
37 | 1, 36 | sylbi 207 | . 2 |
38 | 29, 37 | eqssd 3620 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wo 383 wa 384 wceq 1483 wcel 1990 wral 2912 crab 2916 cun 3572 wss 3574 cuni 4436 cint 4475 cima 5117 con0 5723 cfv 5888 cr1 8625 crnk 8626 |
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-pow 4843 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-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-om 7066 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-r1 8627 df-rank 8628 |
This theorem is referenced by: rankprb 8714 rankopb 8715 rankun 8719 rankaltopb 32086 |
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