ⴰⵎⴹⴰⵏ ⴰⵎⵓⴼⵔⴰⵔ

ⴰⵎⴹⴰⵏ ⴰⵎⵓⴼⵔⴰⵔ ⴷ ⴰⵎⴹⴰⵏ ⵢⵓⴳⵔⵏ ⵏⵖ ⵉⴳⴷⴰ ⵥⵉⵔⵓ, ⵙ ⵓⵎⴷⵢⴰ 3 ⵏⵖ e. ⴷ ⴰⵏⵎⴳⴰⵍ ⵏ ⵓⵎⴹⴰⵏ ⴰⵎⴰⴽⴽⴰⵙ. 0 ⵉⴳⴰ ⴰⵎⵓⴼⵔⴰⵔ ⵉⴳ ⴰⵎⴰⴽⴽⴰⵙ ⵙ ⵢⴰⵜ ⵜⵉⴽⴽⵍⵜ; ⵢⴰⵍ ⴰⴼⵔⴷⵉⵙ x ⴰⴽⴷ $0<x$ (ⵙ ⵓⴼⴰⵍⵉⵙ $x<0$) ⵏⵜⵜⵉⵏⵉ ⴰⵙ ⴰⵎⵓⴼⵔⴰⵔ ⵙ ⵜⴼⵔⵏⵉ (ⵙ ⵓⴼⴰⵍ. ⴰⵎⴰⴽⴽⴰⵙ ⵙ ⵜⴼⵔⵏⵉ). ⵏⵣⵎⵔ ⴰⴷ ⵏⵣⵣⵡⵓⵔ ⵜⴰⵎⴰⵜⴰⵔⵜ + ⵉ ⵓⵎⴹⴰⵏ ⴰⵎⵓⴼⵔⴰⵔ (ⵎⴷ: +3, +e).

• ⵓⵎⵎⵉⴷⵏ ⵉⴳⴰⵎⴰⵏⴻⵏ, ⴳⴰⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ ⵙ ⵜⵉⵎⵎⴰⴷ ⵏⵏⵙⵏ.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵉⵎⴹⴰⵏⴻⵏ ⵉⵎⴰⵙⵙⴰⵖⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ, ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {Z} _{+}$,$\mathbf {Z} _{+}$, ⵏⵖ ⴰⴽⴽ $\mathbb {N}$.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵡⵓⵎⵎⵉⴷⵏ ⵉⵎⴰⵙⵙⴰⵖⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ ⵙ ⵜⴼⵔⵏⵉ, ⴷⴰ ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {Z} _{+}^{*}$, $\mathbf {Z} _{+}^{*}$, ⵏⵖ ⴰⴽⴽ $\mathbb {N} ^{*}$.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵉⵎⴹⴰⵏⴻⵏ ⵉⵎⴰⵙⵙⴰⵖⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ, ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {Q} _{+}$ ⵏⵖ $\mathbf {Q} _{+}$.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵉⵎⴹⴰⵏⴻⵏ ⵉⵎⴰⵙⵙⴰⵖⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ ⵙ ⵜⴼⵔⵏⵉ, ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {Q} _{+}$ ⵏⵖ $\mathbf {Q} _{+}$.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵉⵎⴹⴰⵏⴻⵏ ⵉⵍⴰⵡⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ, ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {R} _{+}$ ⵏⵖ $\mathbf {R} _{+}$.
• ⵜⴰⴳⵔⵓⵎⵎⴰ ⵏ ⵉⵎⴹⴰⵏⴻⵏ ⵉⵍⴰⵡⵏ ⵉⵎⵓⴼⵔⴰⵔⵏ ⵙ ⵜⴼⵔⵏⵉ, ⵜⵜⵢⵉⵔⵉⵏ ⵙ $\mathbb {R} _{+}^{*}$ ⵏⵖ $\mathbf {R} _{+}^{*}$.