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 $R$ .

~5 minWritten answer · check your work with Lemma

OpenStax, Contemporary Mathematics · §1.2 Subsets · Example 3

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.