What does it mean by the minimum of a fraction given 1?

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I saw an expression and was confused by that:

min{A/B |1}

Both A and B in my case are floating numbers.

The context is, say A is the mean proportion of the papers published in a certain subject in a certain country, and B is the maximum of A in a certain subject where the published paper counts exceeds the global average. I was told that it might be the case that 1 is the upper bound. I am not 100% sure though.

It is the notation from this link: Normalization

Does that mean I have to find the minimum between (the fraction of A and B) and 1?

Also, This is my first post here. Please feel free to let me know if I missed anything. Thank you very much for all the help and reminders!