Allow or permit is normally used instead: In let's get started, the starting point is in view and let's get going, you are on the starting point already. Let s is the english cohortative word, meaning let us in an exhortation of the group including the speaker to do something.
Let’s Dance 2025 „Dancing Star” Gabriel Kelly und Malika zeigen ein
As a rule, we don't use the passive voice with let. I think that let a be a set, let b be a group, and let c be a number. is the most formal phrasing. Thus you don't need to always change each let's/let us with a replacement however we will presume you do, so we could replace let us.
We were allowed to do whatever we.
Since this is a mathematically formal usage, i think that. Moreover, there is a sense. Lets is the third person.