Inverse of Heyting algebra morphism is p-morphism












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It is known that the category of Heyting algebras is dually equivalent to the category of Esakia spaces (which is equivalent to the category of descriptive intuitionistic Kripke frames). Under the duality, a Heyting morphism $f : H to H'$ is send to its inverse, that is it sends a prime filter in $H'$ to its inverse image.



Question: Why is this inverse map a p-morphism (or bounded morphism)?



All references I have found for this refer to a paper by Esakia himself, in Russian. I am looking for an English reference or a proof.










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  • 1




    $begingroup$
    Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
    $endgroup$
    – FML
    Jan 7 at 12:36










  • $begingroup$
    I'd found them indeed. Thanks!
    $endgroup$
    – Math Student 020
    Jan 8 at 0:48






  • 1




    $begingroup$
    For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
    $endgroup$
    – FML
    Jan 8 at 9:34
















1












$begingroup$


It is known that the category of Heyting algebras is dually equivalent to the category of Esakia spaces (which is equivalent to the category of descriptive intuitionistic Kripke frames). Under the duality, a Heyting morphism $f : H to H'$ is send to its inverse, that is it sends a prime filter in $H'$ to its inverse image.



Question: Why is this inverse map a p-morphism (or bounded morphism)?



All references I have found for this refer to a paper by Esakia himself, in Russian. I am looking for an English reference or a proof.










share|cite|improve this question









$endgroup$








  • 1




    $begingroup$
    Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
    $endgroup$
    – FML
    Jan 7 at 12:36










  • $begingroup$
    I'd found them indeed. Thanks!
    $endgroup$
    – Math Student 020
    Jan 8 at 0:48






  • 1




    $begingroup$
    For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
    $endgroup$
    – FML
    Jan 8 at 9:34














1












1








1





$begingroup$


It is known that the category of Heyting algebras is dually equivalent to the category of Esakia spaces (which is equivalent to the category of descriptive intuitionistic Kripke frames). Under the duality, a Heyting morphism $f : H to H'$ is send to its inverse, that is it sends a prime filter in $H'$ to its inverse image.



Question: Why is this inverse map a p-morphism (or bounded morphism)?



All references I have found for this refer to a paper by Esakia himself, in Russian. I am looking for an English reference or a proof.










share|cite|improve this question









$endgroup$




It is known that the category of Heyting algebras is dually equivalent to the category of Esakia spaces (which is equivalent to the category of descriptive intuitionistic Kripke frames). Under the duality, a Heyting morphism $f : H to H'$ is send to its inverse, that is it sends a prime filter in $H'$ to its inverse image.



Question: Why is this inverse map a p-morphism (or bounded morphism)?



All references I have found for this refer to a paper by Esakia himself, in Russian. I am looking for an English reference or a proof.







reference-request heyting-algebra






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Dec 17 '18 at 5:42









Math Student 020Math Student 020

956616




956616








  • 1




    $begingroup$
    Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
    $endgroup$
    – FML
    Jan 7 at 12:36










  • $begingroup$
    I'd found them indeed. Thanks!
    $endgroup$
    – Math Student 020
    Jan 8 at 0:48






  • 1




    $begingroup$
    For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
    $endgroup$
    – FML
    Jan 8 at 9:34














  • 1




    $begingroup$
    Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
    $endgroup$
    – FML
    Jan 7 at 12:36










  • $begingroup$
    I'd found them indeed. Thanks!
    $endgroup$
    – Math Student 020
    Jan 8 at 0:48






  • 1




    $begingroup$
    For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
    $endgroup$
    – FML
    Jan 8 at 9:34








1




1




$begingroup$
Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
$endgroup$
– FML
Jan 7 at 12:36




$begingroup$
Check out Lemma 5.5 of Patrick Morandi's excellent notes on duality theory for distributive lattices and Heyting algebras.
$endgroup$
– FML
Jan 7 at 12:36












$begingroup$
I'd found them indeed. Thanks!
$endgroup$
– Math Student 020
Jan 8 at 0:48




$begingroup$
I'd found them indeed. Thanks!
$endgroup$
– Math Student 020
Jan 8 at 0:48




1




1




$begingroup$
For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
$endgroup$
– FML
Jan 8 at 9:34




$begingroup$
For a somewhat different type of argument you can also have a look at Theorem 6 of the paper Canonical extensions, Esakia spaces, and universal models by Mai Gehrke.
$endgroup$
– FML
Jan 8 at 9:34










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