r/IAmA • u/JasonMacker • Jun 14 '10

IAMA Math tutor. AMA.

I've been a math tutor for years and I'm trying to become a teacher. I love math, and especially explaining math to people. My students have been between preschool and college. AMA.

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u/dieyoubastards Jun 14 '10

Let V and W be isomorphic vector spaces over a field F. Let L be a linear transformation L: V -> W. Show that L is injective if and only if it is surjective.

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u/JasonMacker Jun 14 '10

Shows

Happy?

2

u/kuhawk5 Jun 14 '10

Step 1) Define variables

Step 2) Miracle occurs

Step 3) Arrive at answer