What is this type of consistency called in DataRetrieval?
I would call it expected consistency. 

Unless you are just defining the $=$ operator.

When you get into transactions can have uncommitted or dirty value. By default $=$ will only match committed values but you can search on the uncommitted value. Look up ACID around data consistency.

Also careful with any as with an AND condition it needs to satisfy both so you may not get $R^1$ for $F_2 = V_2$ if another AND condition is not satisfied.