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Mirrors > Home > MPE Home > Th. List > fvelrnb | Structured version Visualization version Unicode version |
Description: A member of a function's range is a value of the function. (Contributed by NM, 31-Oct-1995.) |
Ref | Expression |
---|---|
fvelrnb |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fnrnfv 6242 |
. . 3
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2 | 1 | eleq2d 2687 |
. 2
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3 | fvex 6201 |
. . . . 5
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4 | eleq1 2689 |
. . . . 5
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5 | 3, 4 | mpbii 223 |
. . . 4
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6 | 5 | rexlimivw 3029 |
. . 3
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7 | eqeq1 2626 |
. . . . 5
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8 | eqcom 2629 |
. . . . 5
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9 | 7, 8 | syl6bb 276 |
. . . 4
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10 | 9 | rexbidv 3052 |
. . 3
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11 | 6, 10 | elab3 3358 |
. 2
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12 | 2, 11 | syl6bb 276 |
1
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