What is the formal record of the construction steps in a notebook, as shown in the 'Запись построения в тетради' section?

Formal Record of Construction:

1. l — прямая, C ∈ l; (l is a line, C is on l.)
2. ω (C; r=AB) ∩ l = D; (The circle with center C and radius AB intersects line l at point D.)
3. CD — искомый отрезок. (CD is the desired segment.)