this post was submitted on 12 Jun 2025
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[–] Fleur_@aussie.zone 6 points 2 days ago (2 children)

The correct way to learn math is chronologically

[–] Gladaed@feddit.org 5 points 2 days ago (2 children)

Wrong. Good look fooling around without algebra for years. New methods make old maths easy.

[–] Schadrach@lemmy.sdf.org 2 points 1 day ago

...and even newer methods make old math insanely complicated, but much more generalized. Like building definitions for things like numbers and basic arithmetic using set theory.

[–] Fleur_@aussie.zone 1 points 1 day ago (1 children)
[–] Gladaed@feddit.org 1 points 1 day ago (1 children)

No sarcasm. Being able to use numbers, integrals and derivatives makes a huge amount of maths easy. Exponential function and it's relatives are so handy. (Sin, Cos, Tan, Cot, log).

The Greeks didn't have any of that to do their math.

[–] Fleur_@aussie.zone 2 points 1 day ago

I'm the one being sarcastic Einstein

[–] Knock_Knock_Lemmy_In@lemmy.world 3 points 1 day ago (1 children)

Start with set theory. After about 300 pages you'll be able to show what 1+1 equals.

[–] Schadrach@lemmy.sdf.org 4 points 1 day ago

To be fair, the first 100 pages of that was justifying the set theory definition for what numbers are. The following two hundred papers are proving that a process of iterative counting we call addition functions in a consistent and useful way, given the set theory way of defining numbers. Once we get to that point, 1+1 is easy. Then we get to start talking more deeply about iteration as a process, leading to considering iterating addition (aka multiplication), iterating multiplication (aka exponents), etc. But that stuff is for the next thousand pages.

Remember, 0 is defined as the amount of things in the empty set {}. 1 is defined as the amount of things in a set containing the empty set {{}}. Each following natural number is defined as the amount of things in a set containing each of the previous nonnegative integers. So for example 2 is the amount of things in a set containing the empty set and a set containing the empty set {{}, {{}}}, 3 is the amount of things in a set containing the empty set, a set containing the empty set, and a set containing the empty set and a set containing the empty set {{}, {{}}, {{}, {{}}}}, etc. All natural numbers are just counting increasingly recursively labeled nothing. Welcome to math.