Martin (1992: 233):
Where the Mood changes, but the Residue is constant, the realisation so ^ Finite ^ Subject is possible:
NEW MOOD
[4:178] Ben won the race,
but later so did Carl.
Blogger Comments:
[1] Contrary to the claim, part of the Residue (the substitution) and part of the Mood (the Finite) are constant across clauses here.
[2] In SFL theory, so marks an instance of substitution, a resource of textual cohesion, as shown by the variant ordering of elements; see Halliday & Matthiessen (2004: 564-5). Here it is misconstrued as continuity, which in turn is misconstrued as logical instead of textual.
Ben
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won
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the race
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|
Subject
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Finite
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Predicator
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Complement
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Mood
|
Residue
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||
but
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later
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so
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did
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Carl
|
|
circumstantial Adjunct
|
Predicator
|
Complement
|
Finite
|
Subject
|
|
Residue
|
Mood
|