The grass is wet
because the
sprinkler is on
The grass is wet
because it's raining
The grass is wet
The grass is wet
because the
sprinkler is on
The grass is wet
because it's raining
The grass is wet
It's cloudy, so the
sprinkler is off
Two extensions: either because it's raining, or because the sprinkler is on.
One extension: because it's raining.
we simply accept the grass is wet...
Dung, Phan Minh. "On the acceptability of arguments and its fundamental role in
nonmonotonic reasoning, logic programming and n-person games." Artificial intelligence
77, no. 2 (1995): 321-357.
Argumentation is about consistency rather than
truth, so arguments are acceptable or not.
A set of arguments that are acceptable together
is called an extension.
An argument is acceptable if it isn't attacked, or if
it's defended by an attack on its attacker.
With arguments as nodes, attacks as edges, we
can draw a directed graph:
Why is the grass wet?
DOI: 10.1016/0004-3702(94)00041-X
ASPIC+
AIF