In other words, there is at least one substitution on which the relation between a and c does hold and at least one substitution on which it does not.
There's also a substitution on bass: the stalwart Ben Street, replacing Larry Grenadier.
Sanogo's instincts in front of goal until his substitution on 61 minutes betrayed him.
The insistence on substitution – on the interchangeability of characters and plot-lines, on repetition and circularity – is deliciously unsettling.
Over the past 10 to 12 years, there has been a multitude of defensive change, especially in substitution on first-down packages, second-down packages, and so on".
Wenger made a triple substitution on 64 minutes, introducing Walcott, Joel Campbell and Francis Coquelin, and switching to what was essentially a 3-4-2 formation.
He's sitting in for Zoë Ball (what a strange substitution!) on Saturday mornings on Radio 2 between 6 and 8am, and the world is a wonder to him.
Yet after John Mac Master's unsatisfactory substitution on opening night, something of a savior has risen from the rubble of the original cast.
The Ivorian was probably Liverpool's best player here, covering ground, blocking runs and shots and continuously communicating with his team-mates up until his substitution on 82 minutes.
"When the timetable for Woodruff's recovery becomes clearer in the coming weeks," the network said yesterday, "ABC News will announce further interim plans for substitution on the broadcast".
The maximum time required to achieve 16% of maleimide substitution on polystyrene is about 20 h.
