I like these: https://en.wikipedia.org/wiki/Three-valued_logic https://en.wikipedia.org/wiki/Three-state_logic https://en.wikipedia.org/wiki/Many-valued_logic https://en.wikipedia.org/wiki/Relevance_logic
How about apply some good old fashioned maths and physics to TA first and foremost before we talk and Bo this and Bo that ?
Can start with using regression rather than handdrawn trendlines, then you could think about calculus from maths , momentum from physics, literally tonnes of practical concepts that one can apply.