N⊆R⊆Q⊆C\mathbb{N} \subseteq \mathbb{R} \subseteq \mathbb{Q} \subseteq \mathbb{C}N⊆R⊆Q⊆C
R⊆C⊆Q⊆Z\mathbb{R} \subseteq \mathbb{C} \subseteq \mathbb{Q} \subseteq \mathbb{Z}R⊆C⊆Q⊆Z
N⊆Q⊆C⊆R\mathbb{N} \subseteq \mathbb{Q} \subseteq \mathbb{C} \subseteq \mathbb{R}N⊆Q⊆C⊆R
N⊆Q⊆R⊆C\mathbb{N} \subseteq \mathbb{Q} \subseteq \mathbb{R} \subseteq \mathbb{C}N⊆Q⊆R⊆C