1 answer

17-26 true or false questions 17. The smallest positive real number is c, where c = card(0,1). 18. To show

Question:

17-26
true or false questions
17. The smallest positive real number is c, where c = card(0,1). 18. To show that two sets A and B are equal, show that x A a
22. The complex numbers of the form a +bi, where a and b are integers, is uncountable 23. If A is a countable set and if B is
17. The smallest positive real number is c, where c = card(0,1). 18. To show that two sets A and B are equal, show that x A and x B. 19. If (vx)P(e) is false, then P(x) is never true for that domain. 20. If R is a relation on A and if (a, a) is true for some a in A, then R is reflexive. 21. If f:A → B is a function, then B = the range of f
22. The complex numbers of the form a +bi, where a and b are integers, is uncountable 23. If A is a countable set and if B is any infinite set, then card (A U B) -card(A). 24. If R is a relation from A to B and if S is a relation from B to C such that neither R nor S is a function, then S o R is not a function either. 25. A conjecture is the same as an open question. 26. Inductive proofs were used extensively by the ancient Greek geometers, like Euclid.

Answers

17.False.(There is no smallest positive real number) 18. False. 19.False. P(x) at be true for some x in the domain.) 20.False

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