- Iteration is not limited to univariate/logical structures.
- Interdependency is not limited to univariate/logical structures.
- There are two types of interdependency: nuclear and linear.
- Structures can be classified in terms of distinctive features: ± iteration, ± nuclearity and ± linearity.
The first claim rests on a stipulation in Halliday (1965) which Halliday soon dropped.
The second claim rests on misconstruing a structure marker as a unit in a unit complex.
The third claim derives from Martin's misconstrual of experiential vs logical structure in terms of hypotaxis vs parataxis (see here).
The fourth claim rests on the previous three.