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39 (0,086s) •

Result

Forbidden forests in Priestley spaces

We study the properties of Priestley spaces...

BA - Obecná matematika

  • 2004
    • •
  • Jx
Result

Finite retracts of Priestley spaces and sectional coproductivity

$P$ is sectionally coproductive if the Priestley surjection $coprod X_ito P$ induced by Priestley surjections $X_ito P$ is a retraction only when some of the $f_i$ is a retraction. $P$ is sectionally coproductive iff it is acyclic....

BA - Obecná matematika

  • 2010
    • •
  • Jx
    • •
  • Link
Result

Thomas Reid’s remarks against materialism of Joseph Priestley

The paper deals with Thomas Reid’s comments against Joseph Priestley’s materialism. Priestley’s mechanical materialism is based on the philosophy of Isaac Newton, especially Newton’s rules of reasoning. Priestley rejected s...

Philosophy, Ethics and Religion

  • 2020
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  • JSC
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  • Link
Result

More on Configurations in Priestley Spaces, and Some New Problems

It is proved that prohibiting in Priestley spaces a not necessarily topped configuration containing a diamond never represents a first order theory in the coresponding distributive lattices. The same is proved for a very large class (otherwi...

BA - Obecná matematika

  • 2007
    • •
  • Jx
Result

A Priestley Sum of Finite Trees is Acyclic

Although a cyclic configuration can appear in a coproduct of Priestley spaces without appearing in any of the summands, this cannot be achieved using acyclic finite summands only (that is, in the summands the cycle produced does not have to ...

BA - Obecná matematika

  • 2008
    • •
  • Jx
Result

A Priestley view of spatialization of frames

Priestley representation of frames (locales) is studied and it is shown that this technique yields very easy proofs of some spatialization theorems....

BA - Obecná matematika

  • 2000
    • •
  • Jx
Result

Joseph Priestley and His Approach to Exploring the Human Mind

Th is article attempts to introduce Joseph Priestley's approach to the research of the human mind. It is demonstrated in two consecutive steps how Priestley changes his view of matter and spirit, and how he moves to materialism. In ...

Philosophy, History and Philosophy of science and technology

  • 2018
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  • JSC
Result

Joseph Priestley and his Interpretation of Locke's Theory of Ideas

This contribution describes how Joseph Priestley interpreted John Locke’s of this article is to present Priestley’s alternative interpretation of ideas as mere sensory arguments proposed by Priestley, which are then compare...

Philosophy, History and Philosophy of science and technology

  • 2020
    • •
  • Jost
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  • Link
Result

Combinatorial trees in Priestley spaces

Prohibiting a combinatorial tree in the Priestley duals determines an axomatizable class of distributive lattices. On the other hand, prohibiting n-crowns with n at least 3 does not. Given what is known about the diamond, this is another str...

BA - Obecná matematika

  • 2005
    • •
  • Jx
Result

Priestley configurations and Heyting varieties

Heyting varieties determined by prohibition of configurations in corresponding Priestley spaces are studied. A.o., necessary and sufficient condition for a system of configurations to determine a variety is presented (by the way, if such a s...

BA - Obecná matematika

  • 2008
    • •
  • Jx
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