According to these five original propositions, we can draw the following corresponding conclusions:
①A is neither Chou-heung nor Xia Xiang.
= = > A may be spring fragrance or winter fragrance.
②B is neither winter fragrance nor spring fragrance.
= = > B Maybe it's Xia Xiang or Chou-heung.
3 If A is not winter fragrance, then C is not spring fragrance?
= = > ignore this proposition for the time being (according to proposition ⑤, this proposition has no hypothetical meaning).
④D is neither Xia Xiang nor Chunxiang?
= = > d may be autumn fragrance or winter fragrance.
C is neither spring fragrance nor winter fragrance.
= = > C may be Chou-heung or Xia Xiang.
According to the new proposition obtained above, we get the initial correspondence as shown in figure 1:
Starting from this diagram,
Suppose A is Chunxiang, then D can only be Dongxiang.
Suppose A is winter fragrance, then D can only be autumn fragrance.
At this point, Chou-heung can't be B and C, only B and C are both Xia Xiang.
Therefore, the assumption that A is Dong Xiang does not hold water.
One is Chunxiang (confirmed)
D is Dongxiang (OK)
Suppose B is Xia Xiang and C is Chou-heung.
Suppose B is Chou-heung and C is Xia Xiang.
Judgment result:
B and C may both be Chou-heung, but D is definitely not Chou-heung.
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Excuse me, did TWZ copy the title wrong?