What is the difference between sound and unfounded reasoning?

Question

In terms of Artificial Intelligent and Logical Knowledge, What is the difference between sound and unfounded reasoning?

Also, which search uses the ID3 algorithm? Is this a breadth-first search?

thank

Answer 1

Reasoning sounds if the room is true, and a conclusion can only be drawn from these rooms. For instance:

The answer upvote gives you 10 reps. Jack has 4 answers upvotes

---

Jack has 40 rep

is sound (ignoring other rep factors :)). If he reads:

The answer gives you 50 reps
. Jack has 4 answers. Upvotes

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Jack has 200 rep

, ,

Answer 2

, . - SO .

. , , - , . , , , -— , , .. , , , , , .

, , : , - . , , 1, 2, , , : , .

, , , , - , , . , .

, , - . , , , , . . - " " , Wikipedia .

Answer 3

.

L, p, , .

p, , , . , L.

The logic of L is complete if every statement p that you (as an intelligent person) thinks to be true sounds.

So we are looking for sound and complete logic.

This question sounds like a homework question for AI 101.