Concept
What does ¬∀ x Human ( x ) . True mean?
Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk / Chapter 1
"¬∀ x Human ( x ) . True. This says “it’s not the case that everyone and everything is hu- man.” And that certainly is not the case."
Related Ideas
- How can quantifiers be negated, interchanged, and ordered?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- What does ¬∃ x Human(x) mean?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- How do universal and existential quantifiers express claims about many objects?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- What does ∀ x Professor(x) . False mean?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- How can every professor being human be expressed correctly?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- Why are ∀ x Human(x) ∧ Professor(x) and ∀ x Human(x) ⇒ Professor(x) different?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- How do implication and equivalence work in propositional logic?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1
- How do logical connectives combine propositions?Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk · Chapter 1