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Cake day: August 2nd, 2023

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  • apolo399@lemmy.worldtoScience Memes@mander.xyz1 + 1
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    4 months ago

    No, it’s correct. You define the operation by it’s properties. It’s not saying that “a plus 0 = a” but “the result of applying the binary operation ‘+’ to any number with 0 should give the original number.”

    • is just a symbol. You could instead write it as +(a,0)=a and +(a,S(b))=S(+(a,b)).

    You have to have previously defined 1=S(0), 2=S(1), 3=S(2), and so on.






  • apolo399@lemmy.worldtoScience Memes@mander.xyzI just cited myself.
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    4 months ago

    Sure, let’s do it in base 3. 3 in base 3 is 10, and 3^(-1) is 10^(-1), so:

    1/3 in base 10 = 1/10 in base 3
    0.3… in base 10 = 0.1 in base 3

    Multiply by 3 on both sides:

    3 × 0.3… in base 10 = 10 × 0.1 in base 3
    0.9… in base 10 = 1 in base 3.

    But 1 in base 3 is also 1 in base 10, so:

    0.9… in base 10 = 1 in base 10








  • apolo399@lemmy.worldtoMemes@lemmy.mlTotally make sense
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    1 year ago

    This isn’t entirely true either. The adjective “binario” has to agree with the gender of what’s being talked about, either the grammatical gender of the noun or the natural gender of the person. A salient example could be the noun “piloto”. Just as adjectives inflect for gender so do pronouns, so you can say “el piloto” or “la piloto” depending on the natural gender of the person, and inflect adjectives accordingly. Grammatical gender and natural gender are both distict concepts that impact gender inflection in spanish.