That's an odd complaint to hear on a technology centered forum.
The most obvious application for algebra should be thinking about data structures with their operations. If you can't be sure about a method on a class being valid in terms of the contracts for that class (IE being a closed operation) then the method can't be public (usually an idea taught in "intro to OOP" style classes although with other words unless you're reading something like SICP.)
The most obvious application for algebra should be thinking about data structures with their operations. If you can't be sure about a method on a class being valid in terms of the contracts for that class (IE being a closed operation) then the method can't be public (usually an idea taught in "intro to OOP" style classes although with other words unless you're reading something like SICP.)