If d: driver is drunk, a: driver meets with an accident, translat… - Vidyadip

MCQ

If d: driver is drunk, a: driver meets with an accident, translate the statement 'If the Driver is not drunk, then he cannot meet with an accident' into symbols

A
$\sim \mathrm{a} \rightarrow \sim \mathrm{d}$
✓
$\sim \mathrm{d} \rightarrow \sim \mathrm{a}$
C
$\sim d \wedge a$
D
$a \wedge \sim d$

✓

Answer

Correct option: B.

$\sim \mathrm{d} \rightarrow \sim \mathrm{a}$

(B)
( $\sim d$ : Driver is not drunk) implies
( $\sim a$ : He cannot meet with an accident).
"Implies" is expressed as ' → '.
$\therefore$ symbolic form is $\sim d \rightarrow \sim$ a

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