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Mirrors > Home > ILE Home > Th. List > df-shft | Unicode version |
Description: Define a function
shifter. This operation offsets the value argument of
a function (ordinarily on a subset of ![]() ![]() |
Ref | Expression |
---|---|
df-shft |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cshi 10618 |
. 2
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2 | vf |
. . 3
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3 | vx |
. . 3
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4 | cvv 2689 |
. . 3
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5 | cc 7642 |
. . 3
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6 | vy |
. . . . . . 7
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7 | 6 | cv 1331 |
. . . . . 6
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8 | 7, 5 | wcel 1481 |
. . . . 5
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9 | 3 | cv 1331 |
. . . . . . 7
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10 | cmin 7957 |
. . . . . . 7
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11 | 7, 9, 10 | co 5782 |
. . . . . 6
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12 | vz |
. . . . . . 7
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13 | 12 | cv 1331 |
. . . . . 6
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14 | 2 | cv 1331 |
. . . . . 6
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15 | 11, 13, 14 | wbr 3937 |
. . . . 5
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16 | 8, 15 | wa 103 |
. . . 4
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17 | 16, 6, 12 | copab 3996 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
18 | 2, 3, 4, 5, 17 | cmpo 5784 |
. 2
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19 | 1, 18 | wceq 1332 |
1
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Colors of variables: wff set class |
This definition is referenced by: shftfvalg 10622 shftfval 10625 |
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