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Let's look closer at the hypothetical table that was built in the previous step. There is something basically wrong about this table:
No
1
2
3
4
5
Col
yellow
blue
red
green
white
Nat
Norw
Germ
Brit
Swede
Dane
Bev
milk
coffee
tea
Cig
Dunh
Prince
Pet
horse
Indeed, one of the owners of the house 3, 4 or 5 should smoke
Blue Master
, since we know already that none of the owners of house 1 or 2 smokes it. And as far as:
12.
The owner who smokes
Blue Master
drinks
beer
.
— one of the owners of the house 3, 4 or 5 should drink
beer
.
However, our hypothetical table shows that none of them can drink beer. So the
first
of the three possible distributions leads to a
contradiction
, and should therefor be
discarded
.
Let's examine in the similar way the
second
possible distribution.
No
1
2
3
4
5
1
Norw
Germ
Brit
Swede
Dane
2
Norw
Dane
Brit
Swede
Germ
3
Norw
Dane
Brit
Germ
Swede
Considering that:
13.
The
German
smokes
Prince
.
3.
The
Dane
drinks
tea
.
we'll end up with the following table to analyze:
No
1
2
3
4
5
Col
yellow
blue
red
green
white
Nat
Norw
Dane
Brit
Swede
Germ
Bev
tea
milk
coffee
Cig
Dunh
Prince
Pet
horse
What will be your judgement about this table?
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