2.1.xa. Exercise answers

1. a. Mike visited LondonMike visited Paris
L ∧ P
both L and P
[L: Mike visited London; P: Mike visited Paris]
b. Ann wanted white wineBill and Carol wanted red wine
Ann wanted white wine ∧ (Bill wanted red wineCarol wanted red wine)
A ∧ (B ∧ C)
both A and both B and C
[A: Ann wanted white wine; B: Bill wanted red wine; C: Carol wanted red wine]
c. It will rain and clear offit will rain
(it will rainit will clear off) ∧ it will rain
(R ∧ C) ∧ R
both both R and C and R
[C: it will clear off; R: it will rain]
d. That is a marketthat is new relative to other markets but growing
That is a market(that is new relative to other marketsthat is growing)
M ∧ (N ∧ G)
both M and both N and G
[G: that is growing; M: that is a market; N: that is new relative to other markets]
e. Confucius is affable but dignifiedConfucius is austere but not harshConfucius is polite but completely at ease
(Confucius is affableConfucius is dignified) ∧ (Confucius is austereConfucius is not harsh) ∧ (Confucius is politeConfucius is completely at ease)
(A ∧ D) ∧ (S ∧ H) ∧ (P ∧ E)
(both A and D) and (both S and H) and (both P and E)
[A: Confucius is affable; D: Confucius is dignified; E: Confucius is completely at ease; H: Confucius is not harsh; P: Confucius is polite; S: Confucius is austere]
f. Tim lost his glasses and his walletTim’s glasses and wallet were each returned
(Tim lost his glassesTim lost his wallet) ∧ (Tim’s glasses were returnedTim’s wallet was returned)
(G ∧ W) ∧ (R ∧ T)
both both G and W and both R and T
[G: Tim lost his glasses; R: Tim’s glasses were returned; T: Tim’s wallet was returned; W: Tim lost his wallet]
g. Tim lost his glasses and his walletone person found both Tim’s glasses and his wallet
(Tim lost his glassesTim lost his wallet) ∧ one person found both Tim’s glasses and his wallet
(G ∧ W) ∧ O
both both G and W and O
[G: Tim lost his glasses; O: one person found both Tim’s glasses and his wallet; W: Tim lost his wallet]

NoteOne person found both Tim’s glasses and his wallet cannot be analyzed further because One person found Tim’s glasses ∧ one person found Tim’s wallet does not imply that the same person found both.

2. a.
A ∧ ( B ∧ C )
 
 
b.
( A ∧ B ) ∧ C
 
 
c.
both both A and B and both C and D
 
 
d.
both A and both both B and C and D
 
 
 
e.
both both A and both B and C and D
 
 
 
f.
( ( A ∧ B ) ∧ C ) ∧ D
 
 
3. a. (Fred visited VeniceFred visited Florence) ∧ Fred spent a week in Rome
Fred visited Venice and FlorenceFred spent a week in Rome
Fred visited Venice and Florence, and he spent a week in Rome
b. (he was a judge ∧ (he was sternhe was fair)) ∧ he had an excellent knowledge of the law
(he was a judgehe was stern but fair) ∧ he had an excellent knowledge of the law
He was a stern but fair judge who had an excellent knowledge of the law
c. (we arrived coldwe arrived tiredwe arrived hungry) ∧ (we left warmwe left stuffedwe left sleepy)
We arrived cold, tired, and hungrywe left warm, stuffed, and sleepy
We arrived cold, tired, and hungry; and we left warm, stuffed, and sleepy
d. Old King Cole was a merry old soulOld King Cole was a merry old soul
Old King Cole was a merry old soul, and a merry old soul was he
4. Numbers below the tables indicate the order in which values were computed
  a.
A B C A (B C)
T T F   F
       2 1
b.
A B C D ((A D) C) (B A)
T T F T   T F T
          1 2 3 1
Glen Helman 25 Aug 2005