Martin (1992: 322):
In Chapter 4 (Table 4.7) it was noted that relations between messages can be both modulated and modalised; the resulting consequential relations were outlined as in Table 5.15. Seen in this light, consequential conjunctions can be interpreted as interpersonal interventions by interlocutors as far as logical relations between messages are concerned.
Table 5.15. Modulation and modalisation in consequential relations modulation modalisation(Effect irrealis) manner(thus, by) potentiality – cause: consequence(so, because) obligation – condition(then, if) obligation probability purpose(so that) obligation & inclination probability
 Some of the theoretical misunderstandings in this Chapter 4 discussion (Martin: 1992: 193-5) are identified in the posts of the 4th, 5th, 6th, 7th, 8th and 9th of June (2015).
 This confuses metafunctions. Logical relations between clauses do not enact interpersonal meaning.