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Mirrors > Home > ILE Home > Th. List > df-ofr | Unicode version |
Description: Define the function
relation map. The definition is designed so that if
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Ref | Expression |
---|---|
df-ofr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cR |
. . 3
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2 | 1 | cofr 6075 |
. 2
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3 | vx |
. . . . . . 7
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4 | 3 | cv 1352 |
. . . . . 6
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5 | vf |
. . . . . . 7
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6 | 5 | cv 1352 |
. . . . . 6
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7 | 4, 6 | cfv 5211 |
. . . . 5
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8 | vg |
. . . . . . 7
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9 | 8 | cv 1352 |
. . . . . 6
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10 | 4, 9 | cfv 5211 |
. . . . 5
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11 | 7, 10, 1 | wbr 4000 |
. . . 4
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12 | 6 | cdm 4622 |
. . . . 5
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13 | 9 | cdm 4622 |
. . . . 5
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14 | 12, 13 | cin 3128 |
. . . 4
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15 | 11, 3, 14 | wral 2455 |
. . 3
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16 | 15, 5, 8 | copab 4060 |
. 2
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17 | 2, 16 | wceq 1353 |
1
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Colors of variables: wff set class |
This definition is referenced by: ofreq 6079 nfofr 6082 ofrfval 6084 |
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