0 votes 0 votes Mathematical Logic unsolved + – rsansiya111 asked Dec 18, 2021 rsansiya111 337 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply raja11sep commented Dec 18, 2021 reply Follow Share A and D equivalent 2 votes 2 votes rsansiya111 commented Dec 18, 2021 reply Follow Share any sources? 1 votes 1 votes raja11sep commented Dec 18, 2021 reply Follow Share These are just formulas. https://en.wikipedia.org/wiki/First-order_logic https://www.cs.cornell.edu/courses/cs4700/2011fa/lectures/16_FirstOrderLogic.pdf You plz read propositional logic once. 1 votes 1 votes rsansiya111 commented Dec 18, 2021 reply Follow Share sure. Thanks a ton. 1 votes 1 votes Please log in or register to add a comment.
1 votes 1 votes Options A and D are equivalent since ⌝∀x(P(x)) converts the ∀ to ∃ and the negation moves inside the predicate after that. Hence the expression translates to ∃x(⌝P(x)) AngshukN answered Dec 18, 2021 AngshukN comment Share Follow See all 0 reply Please log in or register to add a comment.