The Use of Time in the Later Grice

--- Dale wrote a beautiful thesis, before becoming Griceian, on Witters. He entitled it:

"The use of time in [Witters's Abhandlung]"

and it is deposited in one of the best places in NYC: the campus of the uni!

---

Now, if you have read Witters, you'll enjoy Dale's insights. The other day I was researching on Elizabeth Bates's uses and misuses of Grice re: the acquisition of implicature, and thought that

"The early Grice"

should refer to Baby Grice as he learns to mean. ("His implicatures were an indication that he was going along the right pedantic lines").

----

The "Latter Grice" is the Grice of the Grice-Myro theory of relative identity.

Enters time.

Myro died before Grice, but he left some notes which he wrote "in gratitude to Grice". "System G" he called it. It is all about 'time' and 'tense'.

Myro and Grice think we need time indices here.

Possibly Witters, too, as Dale suggests -- by writing on the use of time in Witters.

Are propositions eternal?

Take

"p"

--- How do we specify 'p' with the right chronological index?

t1 t2
t1 > t2
t_u

time of utterance:

The cat sat on the mat

The cat is on the mat.

Grice and Myro are concerned with Geach's and Wiggins's problem with

"="

as applied to chronological variable contexts:

"Hesperus", today, = Phosphorus.

But _NOT_ allways.

And so on.