mad mathematician's latest activity
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mad mathematician replied to the thread I Formal derivation of statement from Peano Arithmetic system.When you say that you use a Hilbert system without natural deduction, do you mean that you can't use rules that are specific to the... -
mad mathematician replied to the thread I Formal derivation of statement from Peano Arithmetic system.In my derivation I forgot to mention that I use y+0=y; acknowledged we proved already x+(y+z)=(x+y)+z plug z=0, and get...
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mad mathematician replied to the thread I Formal derivation of statement from Peano Arithmetic system.You want to use A4 to prove associativity of addition, so we have for z=1: (x+y)+1=x+(y+1) this is an instantiation of axiom A4. Now we...
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mad mathematician replied to the thread I Formal derivation of statement from Peano Arithmetic system.You need to use induction on z and to invoke an instance of A4.
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mad mathematician reacted to dextercioby's post in the thread Quantum "WHAT IS A QUANTUM FIELD THEORY?" A First Introduction for Mathematicians with
Like.
Speaking of Folland's books, they are notorious for typos. Here's the errata for his 1st edition of the QFT book. -
mad mathematician replied to the thread Quantum "WHAT IS A QUANTUM FIELD THEORY?" A First Introduction for Mathematicians.Thanks.
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mad mathematician replied to the thread A The "electroweak eta meson".You mean as vectors the states are independent of eachother (i.e one is not a linear combination of the other). Theoretically every...
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mad mathematician replied to the thread A The "electroweak eta meson".I wonder a state which is in a superposition that should annihilate itself before the wave function collapses... Maybe this can also...
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mad mathematician replied to the thread Quantum "WHAT IS A QUANTUM FIELD THEORY?" A First Introduction for Mathematicians.Well, I've got two books that treat QFT for the math-geared ahead (I double majored in maths and physics), they kind of old. There's...
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mad mathematician replied to the thread I A very interesting paper on orthodox quantum mechanics.Well being orthodox in Q theory interpretations means usually to adhere to Copenhagen interpretation, as far as I can tell.
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mad mathematician reacted to Physics Detective's post in the thread A Twistors and celestial holography with Like.
Ouch. That paper is above my pay grade, Mitchell. I'm an amateur, an IT guy who's read a lot of old papers, not a mathematical...
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mad mathematician replied to the thread Applied Blennow to follow up Altland?.I'd recommend Arfken (I used it a bit for a third mathematical methods for physicists course, you can't have enough maths... that's why...
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mad mathematician replied to the thread Solid State Ashcroft and Mermin: revised edition.being a ~40 year old student is really harsh with those prices of books just keep escalating.
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mad mathematician replied to the thread I Physicists disagree wildly on what quantum mechanics says about real….Computer says:No, none exists. at least not consistent. Either that, or it never halts.... :oldbiggrin:
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mad mathematician replied to the thread Music Nice track.Baby, give it up.... off to SUSY...