Question

Which of the following disjunctions is false?

A.2 · 3 = 6 or 4 + 5 = 10
B.5 - 3 = 2 or 3 · 4 = 12
C.3 + 4 = 9 or 5 · 2 = 11
D.6 · 2 = 11 or 3 + 5 = 8

Answer 1

For a disjunction to be false, both of its components must be false.

Answer 2

sooooooo? ahahaha

Answer 3

So...
For instance,
Paris is in France <or> London is in Russia
is a true disjunction since it is indeed true that Paris is in France.

However, the disjunction
London is in Spain <or> Rome is in Germany
is a false disjunction since both its components are false.


So... find out which of those pairs are both false.

Answer 4

so A and C

Answer 5

and D

Answer 6

no only D

Answer 7

nope A

Answer 8

Rather undecided are we?