Part 8: How do you build your first CNA model? · Module 19
The five symbols CNA speaks in
What Do the Logic Symbols Mean?
Every CNA formula is built from a tiny vocabulary. Learn these five and you can read any solution the package ever hands you.
So a formula like NoCold*NoComm + NoSuper would read: "(broken cold chain AND no mobilisation) OR (no supervision)." That single line captures both conjunctivity, the * , and equifinality, the + , at the same time. Two ideas, one tidy line.
What You Will Be Able to Do
- Read the five core CNA symbols.
- Tell AND (*) from OR (+) in a formula.
- Recognise that lower-case means absence.