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Mirrors > Home > MPE Home > Th. List > cfub | Structured version Visualization version Unicode version |
Description: An upper bound on cofinality. (Contributed by NM, 25-Apr-2004.) (Revised by Mario Carneiro, 15-Sep-2013.) |
Ref | Expression |
---|---|
cfub |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cfval 9069 | . . 3 | |
2 | dfss3 3592 | . . . . . . . . 9 | |
3 | ssel 3597 | . . . . . . . . . . . . . . . 16 | |
4 | onelon 5748 | . . . . . . . . . . . . . . . . 17 | |
5 | 4 | ex 450 | . . . . . . . . . . . . . . . 16 |
6 | 3, 5 | sylan9r 690 | . . . . . . . . . . . . . . 15 |
7 | onelss 5766 | . . . . . . . . . . . . . . 15 | |
8 | 6, 7 | syl6 35 | . . . . . . . . . . . . . 14 |
9 | 8 | imdistand 728 | . . . . . . . . . . . . 13 |
10 | 9 | ancomsd 470 | . . . . . . . . . . . 12 |
11 | 10 | eximdv 1846 | . . . . . . . . . . 11 |
12 | eluni 4439 | . . . . . . . . . . 11 | |
13 | df-rex 2918 | . . . . . . . . . . 11 | |
14 | 11, 12, 13 | 3imtr4g 285 | . . . . . . . . . 10 |
15 | 14 | ralimdv 2963 | . . . . . . . . 9 |
16 | 2, 15 | syl5bi 232 | . . . . . . . 8 |
17 | 16 | imdistanda 729 | . . . . . . 7 |
18 | 17 | anim2d 589 | . . . . . 6 |
19 | 18 | eximdv 1846 | . . . . 5 |
20 | 19 | ss2abdv 3675 | . . . 4 |
21 | intss 4498 | . . . 4 | |
22 | 20, 21 | syl 17 | . . 3 |
23 | 1, 22 | eqsstrd 3639 | . 2 |
24 | cff 9070 | . . . . . 6 | |
25 | 24 | fdmi 6052 | . . . . 5 |
26 | 25 | eleq2i 2693 | . . . 4 |
27 | ndmfv 6218 | . . . 4 | |
28 | 26, 27 | sylnbir 321 | . . 3 |
29 | 0ss 3972 | . . 3 | |
30 | 28, 29 | syl6eqss 3655 | . 2 |
31 | 23, 30 | pm2.61i 176 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wceq 1483 wex 1704 wcel 1990 cab 2608 wral 2912 wrex 2913 wss 3574 c0 3915 cuni 4436 cint 4475 cdm 5114 con0 5723 cfv 5888 ccrd 8761 ccf 8763 |
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-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-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 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-ord 5726 df-on 5727 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-fv 5896 df-card 8765 df-cf 8767 |
This theorem is referenced by: cflm 9072 cf0 9073 |
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