Which of the following statements is consistent with the above diagram?
All Wannts are Tuuus.
Some Tuuus are Triiis.
All Triiis are Forees.
Is the following statement necessarily true?
All Forees are Wannts.
All bookstores sell stationary items.
所有便利店出售固定项目。
Which of the following conclusionsmightbe true?
All bookstores are convenience stores.
All convenience stores are bookstores.
A friend of Will's is not a friend of Jack's.
A friend of Hannibal's is not a friend of Jack's.
Which of the following conclusionsmustbe true?
Some friend of Will's is a friend of Hannibal's.
Some friend of Hannibal's a friend of Will's.
All Faivvs are Sivkks.
All Faivvs are Sevvens.
给n the above two statements (and the fact at least one Faivv exists), is the following statement true?
No Sivkks are Sevvens.