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Month: July 2017

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Algebraic general topology General Topology

A wrong result

By Victor Porton
On July 4, 2017

I’ve published in my blog a new theorem. The proof was with an error (see the previous edited post)!

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Algebraic general topology General Topology

A new unexpected result (ERROR!)  

By Victor Porton
On July 4, 2017

The below is wrong! The proof requires $latex \langle g^{-1}\rangle J$ to be a principal filter what does not necessarily hold. I knew that composition of two complete funcoids is complete. But now I’ve found that for $latex g\circ f$ to be…

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Algebraic general topology Filters General Topology

A new easy proposition about funcoids

By Victor Porton
On July 3, 2017

I have proved (see new version of my book) the following proposition. (It is basically a special case of my erroneous theorem which I proposed earlier.) Proposition For $latex f \in \mathsf{FCD} (A, B)$, a finite set $latex X \in \mathscr{P} A$…

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  • SCIENCE
  • Home
  • Algebraic General Topology
  • Axiomatic Theory of Formulas
  • Limit of a Discontinuous Function
  • More
  • Prize
  • SCIENCE
  • Home
    • Blog
    • Soft
  • Algebraic General Topology
    • Paperback
    • Ebook
    • PDF
  • Axiomatic Theory of Formulas
    • Paperback
    • Ebook
    • PDF
  • Limit of a Discontinuous Function
  • More
    • Donate
    • Review
    • Publish
    • Politics
  • Prize