Complex Negations Choose the correct symbolization.
Each sentence contains a formula of the form ~p&~q or ~(p&q). The first pattern means "negate both" components; the second means "negate at least one." The strategy is to identify simple sentences, and then to use your intuitive understanding to decide how many should be negated. The point of the strategy is to imagine that you hear the sentence in conversation. If so, what would it mean?
Socrates distrusts both the POLITICIANS and the ARTISTS.
~P&~A
~(P&A)
Socrates does not wear both SANDALS and motorcycle BOOTS.
~S&~B
~(S&B)
Plato dislikes both HUMMUS and TABOULI.
~H&~T
~(H&T)
Plato did not live in both ATHENS and CHICAGO.
~A&~C
~(A&C)
Plato was not both an auto MECHANIC and a PHILOSOPHER.
~M&~P
~(M&P)
Plato was neither a MAGICIAN nor a PLUMBER.
~M&~P
~(M&P)
The meaning was neither COMPREHENSIBLE nor carefully ARTICULATED.
~C&~A
~(C&A)
Dinners are not served with both FRENCH fries and BAKED potato.
~F&~B
~(F&B)
He cannot be in both HAWAII and ALASKA on Tuesday.
~H&~A
~(H&A)
You cannot serve as both PRESIDENT and VICE president of the country.
~P&~V
~(P&V)
The elephants were neither EFFERVESCENT, SCABROUS nor PERNICIOUS.
~E&~S&~P
~(E&S&P)
The sophisticated intellectuals disapprove of TELEVISION, POLITICS and AVOCADOS.
~T&~P&~A
~(T&P&A)
It's false that the LION, the TINMAN and the SCARECROW all needed hearts.
~L&~T&~S
~(L&T&S)
It's not the case that CHRISTMAS, EASTER and your BIRTHDAY, are all national holidays.
~C&~E&~B
~(C&E&B)
The LEPRECHAUNS, the ELVES, and the GNOMES were all dishonest.
~L&~E&~G
~(L&E&G)
Though she promised to make DESSERT, Janet could not provide both JELLO and chocolate MOUSSE flambe.
D&(~J&~M)
D&~(J&M)
Although ARISTOTLE was multi-talented, it's not true that he was both an early EPISTEMOLOGIST and an avid PODIATRIST.
A&(~E&~P)
A&~(E&P)
While Baruch SPINOZA was a brilliant philosopher, it's false that he could play both the UKULELE and the TAMBOURINE.
S&(~U&~T)
S&~(U&T)
Although Janet dislikes both WEASELS and FERRETS, she would never TEASE them nor force them to eat JELLO.
(~W&~F)&(~T&~J)
(~W&~F)&~(T&J)
~(W&F)&(~T&~J)
~(W&F)&~(T&J)
It's false that she feared both VAMPIRES and SPIDERS, moreover, it's not true that she carried both BUG spray and a large wooden CROSS.
(~V&~S)&(~B&~C)
(~V&~S)&~(B&C)
~(V&S)&(~B&~C)
~(V&S)&~(B&C)
GHOSTS and RADIATION are both invisible, but ethereal SPIRITS and NUCLEAR power are not both dangerous.
(~G&~R)&(~S&~N)
(~G&~R)&~(S&N)
~(G&R)&(~S&~N)
~(G&R)&~(S&N)
Both the banana cream PIE and the red velvet CAKE were inedible, however, it's not true that both the lemon SORBET and the strawberry-marshmallow JELLO surprise were delicious.
(~P&~C)&(~S&~J)
(~P&~C)&~(S&J)
~(P&C)&(~S&~J)
~(P&C)&~(S&J)
It's not true that both BATMAN and SUPERMAN can fly, nor is it true that both Bruce WAYNE and Clark KENT are newspaper reporters.
(~B&~S)&(~W&~K)
(~B&~S)&~(W&K)
~(B&S)&(~W&~K)
~(B&S)&~(W&K)
Although you can't be both DEAD and ALIVE, the zombies neither KNEW nor CARED.
(~D&~A)&(~K&~C)
(~D&~A)&~(K&C)
~(D&A)&(~K&~C)
~(D&A)&~(K&C)
If you don't have both a HAT and a pair of BOOTS, then you're not a COWBOY.
(~H&~B)→~C
~(H&B)→~C
If the disaster victims do not get clean WATER and MEDICAL attention people will DIE.
(~W&~M)→D
~(W&M)→D
If you can't both SING and DANCE, then you'll never pass the AUDITION.
(~S&~D)→~A
~(S&D)→~A
If they don't have ENCHILADAS and MARIACHIS, then it's not an AUTHENTIC Mexican restaurant.
(~E&~M)→~A
~(E&M)→~A
If he doesn't ride a HORSE and he doesn't drive a TRUCK, then he's not a real COWBOY.
(~H&~T)→~C
~(H&T)→~C
Supposing that you are neither fabulously WEALTHY nor extraordinarily BEAUTIFUL, then you will have to eat RAMEN.
(~W&~B)→R
~(W&B)→R
No one will see the MOVIE if it features neither ZOMBIES, VAMPIRES nor PENGUINS.
(~Z&~V&~P)→~M
~(Z&V&P)→~M
You cannot make RATATOUILLE unless you have TOMATOES, ZUCCHINI, and EGGPLANT.
(~T&~Z&~E)→~R
~(T&Z&E)→~R
They're not RICE crispies unless they SNAP, CRACKLE and POP.
(~S&~C&~P)→~R
~(S&C&P)→~R
You won't get the JOB unless you can work WEEKENDS, NIGHTS and HOLIDAYS.