This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Metamath Proof Explorer
Description: The derivative is a function. (Contributed by Mario Carneiro, 9-Feb-2015)
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|
Ref |
Expression |
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Assertion |
dvfcn |
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Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
cnelprrecn |
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| 2 |
|
dvfg |
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| 3 |
1 2
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ax-mp |
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