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Mirrors > Home > MPE Home > Th. List > meetval | Structured version Visualization version Unicode version |
Description: Meet value. Since both sides evaluate to when they don't exist, for convenience we drop the requirement. (Contributed by NM, 9-Sep-2018.) |
Ref | Expression |
---|---|
meetdef.u | |
meetdef.m | |
meetdef.k | |
meetdef.x | |
meetdef.y |
Ref | Expression |
---|---|
meetval |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | meetdef.k | . . . . . 6 | |
2 | meetdef.u | . . . . . . 7 | |
3 | meetdef.m | . . . . . . 7 | |
4 | 2, 3 | meetfval2 17016 | . . . . . 6 |
5 | 1, 4 | syl 17 | . . . . 5 |
6 | 5 | oveqd 6667 | . . . 4 |
7 | 6 | adantr 481 | . . 3 |
8 | simpr 477 | . . . 4 | |
9 | eqidd 2623 | . . . 4 | |
10 | meetdef.x | . . . . . 6 | |
11 | meetdef.y | . . . . . 6 | |
12 | fvexd 6203 | . . . . . 6 | |
13 | preq12 4270 | . . . . . . . . . 10 | |
14 | 13 | eleq1d 2686 | . . . . . . . . 9 |
15 | 14 | 3adant3 1081 | . . . . . . . 8 |
16 | simp3 1063 | . . . . . . . . 9 | |
17 | 13 | fveq2d 6195 | . . . . . . . . . 10 |
18 | 17 | 3adant3 1081 | . . . . . . . . 9 |
19 | 16, 18 | eqeq12d 2637 | . . . . . . . 8 |
20 | 15, 19 | anbi12d 747 | . . . . . . 7 |
21 | moeq 3382 | . . . . . . . 8 | |
22 | 21 | moani 2525 | . . . . . . 7 |
23 | eqid 2622 | . . . . . . 7 | |
24 | 20, 22, 23 | ovigg 6781 | . . . . . 6 |
25 | 10, 11, 12, 24 | syl3anc 1326 | . . . . 5 |
26 | 25 | adantr 481 | . . . 4 |
27 | 8, 9, 26 | mp2and 715 | . . 3 |
28 | 7, 27 | eqtrd 2656 | . 2 |
29 | 2, 3, 1, 10, 11 | meetdef 17018 | . . . . . 6 |
30 | 29 | notbid 308 | . . . . 5 |
31 | df-ov 6653 | . . . . . 6 | |
32 | ndmfv 6218 | . . . . . 6 | |
33 | 31, 32 | syl5eq 2668 | . . . . 5 |
34 | 30, 33 | syl6bir 244 | . . . 4 |
35 | 34 | imp 445 | . . 3 |
36 | ndmfv 6218 | . . . 4 | |
37 | 36 | adantl 482 | . . 3 |
38 | 35, 37 | eqtr4d 2659 | . 2 |
39 | 28, 38 | pm2.61dan 832 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wa 384 w3a 1037 wceq 1483 wcel 1990 cvv 3200 c0 3915 cpr 4179 cop 4183 cdm 5114 cfv 5888 (class class class)co 6650 coprab 6651 cglb 16943 cmee 16945 |
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-rep 4771 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-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-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 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-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-glb 16975 df-meet 16977 |
This theorem is referenced by: meetcl 17020 meetval2 17023 meetcomALT 17031 pmapmeet 35059 diameetN 36345 dihmeetlem2N 36588 dihmeetcN 36591 dihmeet 36632 |
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