Kinds of cross-reference
Next to some cross-references stands a small symbol. It does not indicate where the reference leads — that is given beside it — but in what relation the two passages stand to each other.
In Hegel, this is not a minor matter. That the Phenomenology anticipates what Spirit later unfolds is a statement about the architecture of the system, not about the resemblance of two texts.
◆ The Same Subject
Both passages deal with the same matter, at different points in the system. The most common case — and the most harmless: it merely says that it is worth reading both.
≡ Positional Equivalence
Both occupy the same place in their respective triads: the third term here, the third term there. Hegel’s structure repeats itself at every stage, and whoever has understood one step recognizes the other again.
↗ Anticipation
One passage anticipates what another unfolds. The classic case is the Phenomenology: it runs through shapes that the system later treats at their systematic place.
The reference always runs from the anticipation to the unfolding.
⚡ Conflict
The two passages contradict each other — not as an error, but as a tension that Hegel himself leaves standing or only resolves later.
The rarest case, and the most instructive.
→ Acts on
A thinker, a work, or a thought acts on another. The reference runs in the direction of the effect.
← Draws On
The opposite direction: here, what was thought elsewhere is taken up. Both are needed, because effect and reception do not always coincide — some had an influence different from how they wanted to be understood.
❝ Refers to
One passage names the other as its source. This is more than influence: it is an explicit appeal to authority.
◉ The Same Person
Both passages deal with the same person — for instance, the thinker and his work, or two sections about the same figure of history.
Where No Symbol Appears
Then the type of relation has not been noted. This does not mean that none exists; the assignment grew over the years and has not been retroactively filled in everywhere.
The five ways are developed in full in Systematisches Denken by Kai Froeb — free to read: