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merjet last won the day on July 25

merjet had the most liked content!

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About merjet

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  • Country
    United States
  • State (US/Canadian)
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  • Copyright
  • Biography/Intro
    I have several articles published in Objectivity and the Journal of Ayn Rand Studies.
  • School or University
    University of Illinois
  • Occupation
    actuary (retired)

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871 profile views
  1. Medicare for All: Pushback against Warren
  2. Medicare for All: Profligate Sanders Medicare for All: Warren's Chicanery
  3. Wrong. See here. India's emissions in 2017 were almost half that of the USA. (China's was more than double the USA.)
  4. Medicare for All Myths Medicare for All: Chicanery from The Guardian
  5. Medicare for All and Insurance for None?
  6. Attention intruders Nobody asks Bernie Sanders these questions
  7. Crystal Fire #1 Crystal Fire #2 Crystal Fire #3
  8. Democratic demagogues about health insurance
  9. I don't know, but crab apples are legit. 😊
  10. I put a review of Mathematics is About the World on Amazon. I will consider suggestions for improving it.
  11. In one sense the dimension of a matrix is always 2 -- it has rows and it has columns. The usual meaning of a matrix's dimension is the number of rows and the number of columns -- e.g. 2x2, 3x3, 4x4, ... mxn (link). My saying "matrices with more than 3 dimensions" was less than exact. My intent was a 4x4, 5x5, etc. which do not have spatial counterparts. I don't know what you mean by "matrix with 3 or more dimensions."
  12. Spheres of Justice #13 Spheres of Justice #14
  13. I finished reading Knapp’s book, Mathematics is About the World. I rate it 5 stars, but with some room for improvement. Knapp barely mentions arithmetic and counting. More about arithmetic would strengthen his thesis that mathematics is about the world. The positive integers used for counting (and zero) form the foundation for the real numbers. Understanding addition and subtraction of fractions call upon the important concepts of unit and transformation, which he does use extensively for different topics – measuring and vector spaces. As an aside, as I have already indicated, mathematics is also about the way we think about the world. Mathematicians “extrapolate” concepts beyond perceptual reality. Examples are complex numbers and matrices with more than 3 dimensions.
  14. Okay. Any idea about content, e.g. more of this and less of that?
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