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Joined 1 month ago
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Cake day: March 10th, 2025

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  • subiprime@lemmy.blahaj.zoneto196@lemmy.blahaj.zoneRule
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    3 days ago

    I’m confused about this step in the final condition’s proof:

    |🍎(x) -🍌(x)| +|🍌(x) - 🍇(x)| >=|🍎(x) -🍌(x) +🍌(x) - 🍇(x)| = |🍎(x) - 🍇(x)| since |q| >= q forall q

    I can see how it’s true by proving that |p| + |q| >= |p + q|, but that’s not stated anywhere and I can’t figure out how |q| >= q forall q is relevant.

    Also, thanks a lot for making/showing a proof :D