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/sci/ - Science & Math

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>> No.9605065 [View]
File: 77 KB, 787x357, 2018-02-20-22-18-33_scrot.png [View same] [iqdb] [saucenao] [google]
9605065

Are there any professors in /mg/. My linear algebra professor from last semester seems like the kind of guy that would post here (he had a Ph.D. in math and an anime girl desktop background on his laptop).

>> No.9596104 [View]
File: 77 KB, 787x357, 2018-02-20-22-18-33_scrot.png [View same] [iqdb] [saucenao] [google]
9596104

>>9579769
I ran into a homework problem that asked for a homomorphism between a group of 2x2 matrices and [math]2\mathbb{Z}[/math]. I found a homomorphism, but I did not explicitly show that it was a function. I just assumed that I was right and moved on with the rest of the proof.
If I prove that one group is homomorphic to another, should I also prove that the homomorphism is a function?

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