introductory set theory/truth tables/propositional logic/Venn diagrams/Karnaugh maps for gifted elementary age learners

I encountered the All About Circuits electronic textbook "Lessons in Electronic Circuits" while searching for materials/curriculum of the abstract 1960s "new math" which I was fortunate enough to learn in elementary school. Are there participants with an interest in introductory set theory/truth tables/bases/propositional logic/Venn diagrams/Karnaugh maps for gifted elementary age learners? I'm looking for leads on young learner age appropriate worksheets and/or workbooks?