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Mirrors > Home > ILE Home > Th. List > df-minusg | Unicode version |
Description: Define inverse of group element. (Contributed by NM, 24-Aug-2011.) |
Ref | Expression |
---|---|
df-minusg |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cminusg 12878 |
. 2
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2 | vg |
. . 3
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3 | cvv 2738 |
. . 3
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4 | vx |
. . . 4
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5 | 2 | cv 1352 |
. . . . 5
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6 | cbs 12462 |
. . . . 5
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7 | 5, 6 | cfv 5217 |
. . . 4
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8 | vw |
. . . . . . . 8
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9 | 8 | cv 1352 |
. . . . . . 7
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10 | 4 | cv 1352 |
. . . . . . 7
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11 | cplusg 12536 |
. . . . . . . 8
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12 | 5, 11 | cfv 5217 |
. . . . . . 7
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13 | 9, 10, 12 | co 5875 |
. . . . . 6
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14 | c0g 12705 |
. . . . . . 7
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15 | 5, 14 | cfv 5217 |
. . . . . 6
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16 | 13, 15 | wceq 1353 |
. . . . 5
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17 | 16, 8, 7 | crio 5830 |
. . . 4
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18 | 4, 7, 17 | cmpt 4065 |
. . 3
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19 | 2, 3, 18 | cmpt 4065 |
. 2
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20 | 1, 19 | wceq 1353 |
1
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Colors of variables: wff set class |
This definition is referenced by: grpinvfvalg 12915 |
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