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Mirrors > Home > QLE Home > Th. List > u4lemona | Unicode version |
Description: Lemma for non-tollens implication study. |
Ref | Expression |
---|---|
u4lemona |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i4 47 |
. . 3
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2 | 1 | ax-r5 38 |
. 2
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3 | or32 82 |
. . 3
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4 | ax-a3 32 |
. . . . . 6
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5 | lea 160 |
. . . . . . . 8
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6 | 5 | df-le2 131 |
. . . . . . 7
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7 | 6 | lor 70 |
. . . . . 6
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8 | 4, 7 | ax-r2 36 |
. . . . 5
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9 | 8 | ax-r5 38 |
. . . 4
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10 | comor1 461 |
. . . . . . . . 9
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11 | 10 | comcom7 460 |
. . . . . . . 8
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12 | comor2 462 |
. . . . . . . 8
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13 | 11, 12 | com2an 484 |
. . . . . . 7
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14 | 13, 10 | com2or 483 |
. . . . . 6
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15 | 12 | comcom2 183 |
. . . . . 6
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16 | 14, 15 | fh4 472 |
. . . . 5
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17 | lear 161 |
. . . . . . . . . 10
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18 | leor 159 |
. . . . . . . . . 10
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19 | 17, 18 | letr 137 |
. . . . . . . . 9
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20 | leo 158 |
. . . . . . . . 9
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21 | 19, 20 | lel2or 170 |
. . . . . . . 8
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22 | 21 | df-le2 131 |
. . . . . . 7
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23 | ax-a3 32 |
. . . . . . . 8
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24 | df-a 40 |
. . . . . . . . . . . 12
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25 | 24 | ax-r1 35 |
. . . . . . . . . . 11
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26 | 25 | con3 68 |
. . . . . . . . . 10
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27 | 26 | lor 70 |
. . . . . . . . 9
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28 | df-t 41 |
. . . . . . . . . 10
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29 | 28 | ax-r1 35 |
. . . . . . . . 9
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30 | 27, 29 | ax-r2 36 |
. . . . . . . 8
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31 | 23, 30 | ax-r2 36 |
. . . . . . 7
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32 | 22, 31 | 2an 79 |
. . . . . 6
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33 | an1 106 |
. . . . . 6
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34 | 32, 33 | ax-r2 36 |
. . . . 5
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35 | 16, 34 | ax-r2 36 |
. . . 4
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36 | 9, 35 | ax-r2 36 |
. . 3
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37 | 3, 36 | ax-r2 36 |
. 2
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38 | 2, 37 | ax-r2 36 |
1
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Colors of variables: term |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i4 47 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: u4lemnaa 643 u4lem5 764 |
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