Question

determine the truth value of the statement

15 − 7 = 22 or 4 + 9 = 13, and 9 − 8 = 1.
Substitute the truth values for p, q, and r to determine the truth value for the letter’s claim
(p /\ q) --> r
(F /\ T) --> F
F --> F
T

Answer 1

15+7*

Answer 2

this is the answer 15+7*

Answer 3

I need the truth value

Answer 4

place T or F in place of those equations for starters

Answer 5

(__ v __) ^ __

Answer 6

can you you me what to input for the answer

Answer 7

im not going to do the work for you ; no.

Answer 8

you seem to have edited it tho .... sneaky

Answer 9

im not sure how the extra stuff fits in to the picture tho; it doesnt fit the question

Answer 10

my instructor said I did it wrong the first time and gave me the addiional information to hlep me

Answer 11

(15 − 7 = 22) or (4 + 9 = 13), and (9 − 8 = 1)

lets start by defining the truth value of these statements

15 − 7 = 22 ; True or False?
4 + 9 = 13 ; True or False?
9 − 8 = 1 ; True or False?

Answer 12

false,true,true. I got that part I jus need to input the other

Answer 13

then lets replace them with their truth values

(15 − 7 = 22) or (4 + 9 = 13), and (9 − 8 = 1)

( F or T ) and T

and write it in notation

(F v T) ^ T

just like the order of operations, we can do whats inside the (...) first

F v T ; does this gives us a True or False result?

Answer 14

(F^T)->T would that be the way

Answer 15

no

Answer 16

the arrow replaces the word "then", it points to a consequence

there are no arrows to be had ... yet

Answer 17

So that would give us a true value. Right ?

Answer 18

correct; FvT uses an "or" operator. or is true when at least one of them is true

(FvT) = T

lets replace that then

(F v T) ^ T
T ^ T


so, can you tell me the truth value of whats left? T ^ T = true or false?

Answer 19

false

Answer 20

lets review

the and operator (^) is only true with all of its arguments are true

since we have 2 arguments, both are true, we are using the "and" operator ... this tells us that:

T^T = T

since we are left with only one arguement, there is nothing left to determine .....

Answer 21

(15 − 7 = 22) or (4 + 9 = 13), and (9 − 8 = 1)

( F or T ) and T

T and T

T

Answer 22

sometimes it really is better just to leave the words inplace :)