Recent content by Math Amateur

  1. Math Amateur

    I Predicates and Models ... Goldrei

    I am reading Goldrei's book: "Propositional and Predicate Calculus: A Model of Argument", Chapter 4: Predicates and Models. I need help in understanding Goldrei's answer to Exercise 4.5 (a) ... Exercise 4.5 together with Goldrei's solution reads as follows: Can someone please explain exactly...
  2. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Thanks Andrew ... Reflecting on what you have written ... Thanks again, Peter
  3. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Thanks DrClaude ... appreciate your help ... Peter
  4. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Hello Andrew, Thanks again on your help with Neuenschwander Section 1.9 ... {Note ... A scan of Neuenschwander Section 1.9 from the start to page 26 is available below ...} I am hoping you can clarify some issues for me ... You write: " ... ... Lastly, to avoid confusion, avoid writing...
  5. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Oh … interesting … Thanks Dan for those helpful comments and thoughts … Peter
  6. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Andrew. Do the Cohen-Tannoudji volumes have a good number of worked examples … ? Does it have worked solutions to some of the exercises …? I think these items can help one get a good grasp of the theory … Peter
  7. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Dan, Does it have enough worked examples? Does the book provide any solutions to exercises … ‘’These items can help one get a good grasp of theory … Peter
  8. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Andrew, … thanks again for your helpful post … Do you have any recommended texts on Dirac Notaation for vectors and tensors …? Peter
  9. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    Thanks Andrew … your reply is VERY helpful … I very much appreciate your help … Thanks again, Peter
  10. Math Amateur

    I Dirac Notation for Vectors and Tensors (Neuenschwander's text ....)

    I am reading Tensor Calculus for Physics by Dwight E. Neuenschwander and am having difficulties in confidently interpreting his use of Dirac Notation in Section 1.9 ... in Section 1.9 we read the following: I need some help to confidently interpret and proceed with Neuenschwander's notation...
  11. Math Amateur

    I The Inertia Tensor .... Determining Components of Angular Momentum ....

    Thanks Orodruin … most helpful … Appreciate your help … Peter
  12. Math Amateur

    I The Inertia Tensor .... Determining Components of Angular Momentum ....

    Thanks for the reply Orodruin ... Given that it should be straight forward i had another shot at demonstrating the Neuenschwander Equation 2.9 leads to (the compact and rather non-intuitive IMO) equation 2.11 ... I think my demonstration is OK ... but not completely sure ... details follow ...
  13. Math Amateur

    I The Inertia Tensor .... Determining Components of Angular Momentum ....

    I am reading Tensor Calculus for Physics by Dwight E. Neuenschwander and am having difficulties in following his logic regarding proceeding to derive the components of Angular Momentum and from there the components of the Inertia Tensor ... On page 36 we read the following: In the above text...
  14. Math Amateur

    MHB Outer measure .... Axler, Result 2.8 ....

    I am reading Sheldon Axler's book: Measure, Integration & Real Analysis ... and I am focused on Chapter 2: Measures ... I need help with the proof of Result 2.8 ... Result 2.8 and its proof read as follows In the above text from Axler we read:"The doubly indexed collection of open...
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