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Artificial Intelligence
Artificial Intelligence 2016-2017
Physical Symbol Systems [1]
An aside: equations

x2 + ax + b = 0
x2 + 2(a/2)x + a2/4 − a2/4 + b = 0
(x + a/2)2 − a2/4 + b = 0
(x + a/2)2 = a2/4 − b
x = − a/2 ± (a2/4 − b)1/2
Artificial Intelligence 2016-2017
Physical Symbol Systems [2]
An aside: equations

x2 + ax + b = 0
x2 + 2(a/2)x + a2/4 − a2/4 + b = 0
(x + a/2)2 − a2/4 + b = 0
(x + a/2)2 = a2/4 − b
x = − a/2 ± (a2/4 − b)1/2
Artificial Intelligence 2016-2017
Physical Symbol Systems [3]
An aside: equations

x2 + ax + b = 0
x2 + 2(a/2)x + a2/4 − a2/4 + b = 0
(x + a/2)2 − a2/4 + b = 0
(x + a/2)2 = a2/4 − b
x = − a/2 ± (a2/4 − b)1/2
Artificial Intelligence 2016-2017
Physical Symbol Systems [4]
An aside: equations

x2 + ax + b = 0
x2 + 2(a/2)x + a2/4 − a2/4 + b = 0
(x + a/2)2 − a2/4 + b = 0
(x + a/2)2 = a2/4 − b
x = − a/2 ± (a2/4 − b)1/2
Artificial Intelligence 2016-2017
Physical Symbol Systems [5]
An aside: equations

x2 + ax + b = 0
x2 + 2(a/2)x + a2/4 − a2/4 + b = 0
(x + a/2)2 − a2/4 + b = 0
(x + a/2)2 = a2/4 − b
x = − a/2 ± (a2/4 − b)1/2
x a
Artificial Intelligence 2016-2017
b
Physical Symbol Systems [6]
Symbolic Reasoning
Artificial Intelligence 2016-2017
Physical Symbol Systems [7]
Symbolic descriptions can abstract

Artificial Intelligence 2016-2017
Physical Symbol Systems [8]
Reasoning and schemas: syllogism
Artificial Intelligence 2016-2017
Physical Symbol Systems [9]
Reasoning and schemas: syllogism
Artificial Intelligence 2016-2017
Physical Symbol Systems [10]
Reasoning and schemas: syllogism
Artificial Intelligence 2016-2017
Physical Symbol Systems [11]
Reasoning and schemas: syllogism
Artificial Intelligence 2016-2017
Physical Symbol Systems [12]
Fallacies (paralogisms)
Artificial Intelligence 2016-2017
Physical Symbol Systems [13]
What is the purpose of symbolic logic?
Artificial Intelligence 2016-2017
Physical Symbol Systems [14]
What is the purpose of symbolic logic?
Artificial Intelligence 2016-2017
Physical Symbol Systems [15]
Truth and Possible Worlds:
the quest for formal semantics
Artificial Intelligence 2016-2017
Physical Symbol Systems [16]
What is true?


Artificial Intelligence 2016-2017
Physical Symbol Systems [17]
What is true?


Artificial Intelligence 2016-2017
Physical Symbol Systems [18]
What is true?


Artificial Intelligence 2016-2017
Physical Symbol Systems [19]
How to make a sentence true?

Artificial Intelligence 2016-2017
Physical Symbol Systems [20]
How to make a sentence true?

Artificial Intelligence 2016-2017
Physical Symbol Systems [21]
Sentences may be related

Artificial Intelligence 2016-2017
Physical Symbol Systems [22]
Sentences may be related

Artificial Intelligence 2016-2017
Physical Symbol Systems [23]
Sentences may be related

Artificial Intelligence 2016-2017
Physical Symbol Systems [24]
Sentences may be related

Artificial Intelligence 2016-2017
Physical Symbol Systems [25]
Sentences may be related

Artificial Intelligence 2016-2017
Physical Symbol Systems [26]
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