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For the initiated, this is SICP[1] Exercise 1.19. That exercise walks you through a proof without explicitly using linear algebra. I remember having a blast solving this back in the day.

[1] https://web.mit.edu/6.001/6.037/sicp.pdf => page 61




I just read the exercise. That's very clever.

Makes me want to sit and go through the book.


I skimmed your substack, and it seems to me that you would like SICP. Give it a try.


Thank you. I will do it.


Interesting, TIL.

Thanks for sharing. :)




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