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Mirrors > Home > MPE Home > Th. List > elmapg | Structured version Visualization version Unicode version |
Description: Membership relation for set exponentiation. (Contributed by NM, 17-Oct-2006.) (Revised by Mario Carneiro, 15-Nov-2014.) |
Ref | Expression |
---|---|
elmapg |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mapvalg 7867 |
. . 3
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2 | 1 | eleq2d 2687 |
. 2
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3 | fex2 7121 |
. . . . 5
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4 | 3 | 3com13 1270 |
. . . 4
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5 | 4 | 3expia 1267 |
. . 3
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6 | feq1 6026 |
. . . 4
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7 | 6 | elab3g 3357 |
. . 3
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8 | 5, 7 | syl 17 |
. 2
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9 | 2, 8 | bitrd 268 |
1
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