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Mirrors > Home > MPE Home > Th. List > eqinf | Structured version Visualization version Unicode version |
Description: Sufficient condition for an element to be equal to the infimum. (Contributed by AV, 2-Sep-2020.) |
Ref | Expression |
---|---|
infexd.1 |
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Ref | Expression |
---|---|
eqinf |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-inf 8349 |
. . 3
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2 | infexd.1 |
. . . . . 6
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3 | cnvso 5674 |
. . . . . 6
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4 | 2, 3 | sylib 208 |
. . . . 5
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5 | 4 | eqsup 8362 |
. . . 4
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6 | vex 3203 |
. . . . . . . . . . 11
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7 | brcnvg 5303 |
. . . . . . . . . . . 12
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8 | 7 | bicomd 213 |
. . . . . . . . . . 11
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9 | 6, 8 | mpan2 707 |
. . . . . . . . . 10
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10 | 9 | notbid 308 |
. . . . . . . . 9
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11 | 10 | ralbidv 2986 |
. . . . . . . 8
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12 | brcnvg 5303 |
. . . . . . . . . . . 12
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
13 | 6, 12 | mpan 706 |
. . . . . . . . . . 11
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14 | 13 | bicomd 213 |
. . . . . . . . . 10
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15 | vex 3203 |
. . . . . . . . . . . . . 14
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16 | 6, 15 | brcnv 5305 |
. . . . . . . . . . . . 13
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17 | 16 | a1i 11 |
. . . . . . . . . . . 12
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18 | 17 | bicomd 213 |
. . . . . . . . . . 11
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19 | 18 | rexbidv 3052 |
. . . . . . . . . 10
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20 | 14, 19 | imbi12d 334 |
. . . . . . . . 9
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21 | 20 | ralbidv 2986 |
. . . . . . . 8
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22 | 11, 21 | anbi12d 747 |
. . . . . . 7
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23 | 22 | pm5.32i 669 |
. . . . . 6
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24 | 3anass 1042 |
. . . . . 6
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25 | 3anass 1042 |
. . . . . 6
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26 | 23, 24, 25 | 3bitr4i 292 |
. . . . 5
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27 | 26 | biimpi 206 |
. . . 4
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28 | 5, 27 | impel 485 |
. . 3
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29 | 1, 28 | syl5eq 2668 |
. 2
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30 | 29 | ex 450 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
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-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-po 5035 df-so 5036 df-cnv 5122 df-iota 5851 df-riota 6611 df-sup 8348 df-inf 8349 |
This theorem is referenced by: eqinfd 8391 infxr 39583 |
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