I mean, it is pretty clear here that you do not really understand the purpose of notation, nor what maths is. Notation is just a constructed language to convey a mathematical idea, it’s malleable
Really though, maths is so much more than “3+5=8 because that’s the correct answer!” But why is it the correct answer? In what context? What is the definition of addition? How can you prove that 1+1=2 from fundamental axioms? This is harder to answer than you might think.
Read the comments and you’ll find multiple people telling him he is wrong, with references 😂 His usual comeback is “well, that doesn’t prove that it’s taught everywhere”, yeah only that they ALL say the same thing! 😂 And he even admitted at one point he couldn’t find his rule in any Maths textbooks. 😂 I even tried to tell him myself, and he deleted my comment because I proved he was wrong 😂
Is well-known to be overridden with people who do not know how to do order of operations 😂 On Mastodon I’ve seen people asking where is a better place to take Maths problems
If you want a book about this
I have plenty of Maths textbooks, which for some reason you refuse to look in
“comprehensive handbook” - so, yet again, not a Maths textbook 🙄
“first published in 1945 in Russia” - the order of operations rules are older than 1945 😂
“frequently used guide for scientists, engineers, and technical university students” - notably no mention of Mathematicians
I’m sure you could also find stuff about this in a set theory book
and you could find this in a high school Maths textbook
Though good luck understanding them without sufficient experience in high-level maths
You know teachers here are required to have a Masters in Maths right?? 😂
But why is it the correct answer?
Count up and find out, or use some Cuisenaire rods. This is how young kids learn to do it
In what context?
The context of Addition 🙄
What is the definition of addition?
1+1=2, then inductively proven for all subsequent numbers
How can you prove that 1+1=2 from fundamental axioms?
It’s true by definition
This is harder to answer than you might think
Not hard at all. 1+1=2 by definition, then the rest of the numbers are proven inductively. You know there are several species of animals that also know how to count, right?
I mean, it is pretty clear here that you do not really understand the purpose of notation, nor what maths is. Notation is just a constructed language to convey a mathematical idea, it’s malleable
And yeah, it’s easy to just say “this page is wrong!” without any further argument. Nothing you referenced proved the convention as law, and neither is there any mathematical basis for any proof, because it simply is nonsensical to “prove” a notation. Have another source for this being convention https://www.themathdoctors.org/order-of-operations-why/ or https://math.stackexchange.com/questions/884765/mathematical-proof-for-order-of-operations. If you want a book about this, then there’s https://en.wikipedia.org/wiki/Bronshtein_and_Semendyayev that is cited by wikipedia. I’m sure you could also find stuff about this in a set theory book. Though good luck understanding them without sufficient experience in high-level maths
Really though, maths is so much more than “3+5=8 because that’s the correct answer!” But why is it the correct answer? In what context? What is the definition of addition? How can you prove that 1+1=2 from fundamental axioms? This is harder to answer than you might think.
says person who doesn’t understand that there is only one possible answer to 2+3x4. Even kids who are still counting up know what it is
Yep, and the rules aren’t. 2+3x4 can only ever equal 14. In Germany it’s written 2+3.4, and it’s still equal to 14, because the rules are universal
says person ignoring the textbook screenshots explaining why it’s a Law 🙄
Yes there is. See textbook screenshots 🙄
It proves the rules 🙄
Read the comments and you’ll find multiple people telling him he is wrong, with references 😂 His usual comeback is “well, that doesn’t prove that it’s taught everywhere”, yeah only that they ALL say the same thing! 😂 And he even admitted at one point he couldn’t find his rule in any Maths textbooks. 😂 I even tried to tell him myself, and he deleted my comment because I proved he was wrong 😂
Is well-known to be overridden with people who do not know how to do order of operations 😂 On Mastodon I’ve seen people asking where is a better place to take Maths problems
I have plenty of Maths textbooks, which for some reason you refuse to look in
“comprehensive handbook” - so, yet again, not a Maths textbook 🙄
“first published in 1945 in Russia” - the order of operations rules are older than 1945 😂
“frequently used guide for scientists, engineers, and technical university students” - notably no mention of Mathematicians
and you could find this in a high school Maths textbook
You know teachers here are required to have a Masters in Maths right?? 😂
Count up and find out, or use some Cuisenaire rods. This is how young kids learn to do it
The context of Addition 🙄
1+1=2, then inductively proven for all subsequent numbers
It’s true by definition
Not hard at all. 1+1=2 by definition, then the rest of the numbers are proven inductively. You know there are several species of animals that also know how to count, right?