OpenStax, Contemporary Mathematics §1.2 Subsets · Example 3 · Combinatorics · Sets & logic

Subsets · Example 3

Consider the subsets of a standard deck of cards: $S = {s p a d es, h e a r t s, d iam o n d s, c l u b s}$ ; $R = {h e a r t s, d iam o n d s}$ ; $B = {s p a d es, c l u b s}$ ; and $C = {c l u b s}$ .
Express the relationship between the following sets symbolically.

(a) Set $S$ and set $B$ .
(b) Set $C$ and set $B$ .
(c) Set $R$ and $R$ .

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OpenStax, Contemporary Mathematics · §1.2 Subsets · Example 3

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