Perfect for checking your homework answers. Instantly verify set relations (∈ and ⊆) even with nested sets and power sets.
∅ / {} | 集合要素: {a, b} | べき集合: 2^{a, b} / P({a, b}){ } で囲んでください。例: {a, b, c} ▼ 入力例（クリックで入力）
A quick article and video to review before using the tool.