Grice's Truth-Tables and why he stuck with 'two-valued'

From

http://www.filozof.uni.lodz.pl/bulletin/pdf/29_3_5.pdf

D. Jacquette, p. 116.

Truth table for three-valued

"if p, q"


p ---- q ----- "p ) q"

1 ---- 1 --------- 1
1 ---- 0 --------- 0
1 --- .5 -------- .5

0 ---- 1 --------- 1
0 ---- 0 --------- 1
0 --- .5 --------- 1

.5 --- 1 --------- 1
.5 --- 0 -------- .5
.5 -- .5 --------- 1

Next lesson: its conditional probability.