Building a knowledge graph in Logseq →
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A basic, no-plugin version

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Syntax: relationship + arrow

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Support the following syntax for aspects (term to describe a “subject - relationship - object” phrase)

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- [[some evidence]]
    - [[supports]] ->
        - [[a claim]]
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- [[claim]]
    - <- [[supports]]
        - [[some evidence 1]]
        - [[some evidence 2]]
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a claim (on the page)
- <- [[supports]]
	- [[some evidence]]
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some evidence (on the page)
- [[supports]] ->
	- [[a claim]]
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Pros

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The arrow solves the problem of dealing with complements

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Arrow provides a language agnostic relationship direction indicator

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Uses existing block hierarchy structure already core to Logseq

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Familiar to Discourse Graph users

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Cons

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Less readable when the arrow is pointing “backwards” since default is not to create a separate phrase as the complement

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Queries

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I haven’t finished converting these to Logseq queries yet. Can see my work in progress here: Knowledge graph queries.

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x relationship ->: e.g. on evidence page, get claims it supports

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for block x (e.g. current page)

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for every block r that contains a page reference to x

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get child block c of r

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if c contains -> AND a page reference to [[relationship]]

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return all children of c

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get parent block p of r

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if r contains <- AND a page reference to [[relationship]]

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return parent of p

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<- relationship x: e.g. claim page, get supporting evidence

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for block x

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for every block r that contains a page reference to x

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get parent block p of r

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if block p contains -> and a page reference to relationship

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return parent of s

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get child block c of r

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if block c contains <- and a page reference to relationship

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return all children of s

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