From Latin dominus (“lord, head of household”), akin to Italian don, Sicilian don, Spanish don; from domus (“house”). Doublet of dom, domine, dominie and dominus. As a rule, we don't use the passive voice with "let".

Understanding the Context

"Allow" or "permit" is normally used instead: We were allowed to do whatever we wanted. We were permitted to drive the vehicle. Accordi... I think that "Let A be a set, let B be a group, and let C be a number." is the most formal phrasing.

Key Insights

Since this is a mathematically formal usage, I think that would be preferred, but I don't think any of the phrases you presented are wrong, and "Let A be a set, B a group, and C a number." is shorter and more succinct. On a separate note, we have a sister site for Math you might consult. 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 with We want to see x and y. Create a complete iPad desktop setup in 2026. This guide covers external displays, Magic Keyboards, and essential desk accessories.

Final Thoughts

Stay Connected with DON! Keep Up on the Latest Products & Trends! DON. Everything but the Food. ®. Don: The Chase Begins Again, better known simply as Don, is a 2006 Indian Hindi -language action thriller film co-written and directed by Farhan Akhtar.

The film was produced by Ritesh Sidhwani and Farhan Akhtar under their production company Excel Entertainment. Vijay is recruited by a police officer to masquerade as his lookalike Don, the leader of an international gang of smugglers. Things go wrong when the officer is killed and Vijay is left to fend for himself.