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Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-salg | Structured version Visualization version Unicode version |
Description: Define the class of sigma-algebras. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
df-salg |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | csalg 40528 |
. 2
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2 | c0 3915 |
. . . . 5
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3 | vx |
. . . . . 6
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4 | 3 | cv 1482 |
. . . . 5
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5 | 2, 4 | wcel 1990 |
. . . 4
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6 | 4 | cuni 4436 |
. . . . . . 7
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7 | vy |
. . . . . . . 8
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8 | 7 | cv 1482 |
. . . . . . 7
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9 | 6, 8 | cdif 3571 |
. . . . . 6
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10 | 9, 4 | wcel 1990 |
. . . . 5
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11 | 10, 7, 4 | wral 2912 |
. . . 4
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12 | com 7065 |
. . . . . . 7
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13 | cdom 7953 |
. . . . . . 7
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14 | 8, 12, 13 | wbr 4653 |
. . . . . 6
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15 | 8 | cuni 4436 |
. . . . . . 7
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16 | 15, 4 | wcel 1990 |
. . . . . 6
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17 | 14, 16 | wi 4 |
. . . . 5
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18 | 4 | cpw 4158 |
. . . . 5
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19 | 17, 7, 18 | wral 2912 |
. . . 4
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20 | 5, 11, 19 | w3a 1037 |
. . 3
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21 | 20, 3 | cab 2608 |
. 2
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22 | 1, 21 | wceq 1483 |
1
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Colors of variables: wff setvar class |
This definition is referenced by: issal 40534 |
Copyright terms: Public domain | W3C validator |