Consider the sets. $A =$ {letters in the word pills } $B =$ {6} $C =$ $\{ p , i , e \}$ $D =$ $\{ 2 + 1 \}$ $E =$ {three} $F =$ {3} Which of the sets can be placed into a one-to-one correspondence with $D$ ?
A) $D \leftrightarrow B \leftrightarrow E \leftrightarrow F$
B) $D \leftrightarrow A \leftrightarrow E$
C) $D \leftrightarrow A$
D) $D \leftrightarrow B$
E) $D \leftrightarrow B \leftrightarrow F$

Question

Quizplus · Accepted Answer

D is a set with one element, so any set with one element can be placed into a one-to-one correspondence with D. B, E, and F all have one element, so they can all be placed into a one-to-one correspondence with D.

Consider the Sets A=A =A= {Letters in the Word Pills } B=B =B=

Consider the Sets $A =$ {Letters in the Word Pills } $B =$