Arcane Structural Theory did not begin where Elara's lessons with Lucavion had begun.
In the Western Library, she had taught him how to identify a formation's most elementary relationships: the invocation core that defined an effect, the channels that carried mana toward it and the anchors that prevented the resulting structure from collapsing under its own output. Their work with [Mana Light] had reduced each relationship until even a change in one supporting line produced a visible consequence.
The lecturer assumed that everyone present already understood those principles.
