📚 Recommended Mathematics Books
Topology (Munkres) | General Topology (Engelking) | Counterexamples in Topology | Rudin's AnalysisAs an Amazon associate, I earn from qualifying purchases.
I call pointfree funcoids (see my free e-book) between boolean lattices as boolean funcoids.
I have proved that:
Theorem Let $latex \mathfrak{A}$ and $latex \mathfrak{B}$ be complete boolean lattices. Then $latex \alpha$ is the first component of a boolean funcoid iff it is a lower adjoint (in the sense of Galois connections between posets).
Does this theorem generalize for non-complete boolean lattices? or even further?
Is $latex \beta$ the upper adjoint of $latex \alpha$ if $latex (\alpha;\beta)$ is a boolean funcoid? (Equivalently: Is $latex (\alpha;\beta)$ a boolean funcoid if $latex (\alpha;\beta)$ is a Galois connection between complete boolean lattices $latex A$ and $latex B$?)
Further idea: We can define pointfree reloids between posets $latex \mathfrak{A}$ and $latex \mathfrak{B}$ as filters on the set of Galois connections between $latex \mathfrak{A}$ and $latex \mathfrak{B}$.
🔬 Advanced Mathematics References
- Sheaves in Geometry and Logic
- Categories for the Working Mathematician
- Stone Spaces
- Algebraic Topology (Hatcher)
- Concrete Mathematics
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