Blurb:

Chapter 10 explores two categories in the processing of text, i.e., instantial systems and logogenesis – the process of instantiation and the process of modifying an instantial system as a text unfolds. The nature of instantial systems and modification is illustrated with the REFERENCE system – as the meaning unfolds, the instantial system is continuously being modified between people in particular semiotic events. Instantial systems are exemplified from all three metafunctional vantage points to show that the logogenetic development of the instantial system is expansion – a cycle of modification throughout the semiotic event. After systematically explaining how such expansion is ordered, instantial systems and logogenesis is also located in the overall organizations of the system-process of language in context.