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Symbiotic Logic
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Symbiotic Logic
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25 Questions

1. “If a statement is true, then it is implied by any statement whatever” is symbolized as
2. An argument form is valid if and only if it’s expression in the form of a conditional statement is ……………
3. When two statements are combined by using the phrase “if and only if”, the resulting compound statement is called …………………………………………..
4. The phrase ‘Given any x’ is called …………………………………….
5. ‘Some fruits are not ripe’ is symbolized as
6. ……………………….. is regarded the common meaning that is part of the meaning of all four different types of implication symbolized as “ If p , then q”
7. Symbolic logic is also called…………………………………….
8. ………………………… is defined as any argument that is a substitution instance of an elementary valid argument form
9. The process of obtaining a proposition from a propositional function by substituting a constant for a variable is called …………………………………
10. ‘Today is Thursday or Saturday’ is an example for………………………………..
11. Deductive argument is characterized as…………………………….
12. Classical logic is also called ………………………………………
13. No real connection between antecedent and consequent is suggested by …………
14. An argument can be proved invalid by constructing another argument of the same form with …………………….
15. Bi-conditional statement is also called ………………….
16. …………………………..Symbol is used for bi –conditional
17. “it is not the case that the antecedent is true and the consequent is false” is symbolized as……………………………………….
18. Quantification logic is also called………………………………………
19. ………………………….. Symbol is used for weak disjunction
20. The development of symbolic logic has been bound up with the development of………………………
21. Two statements are ………………… when their material equivalence is a tautology
22. The two component statements of conjunction are called……………………………..
23. …………………had introduced into logic the important notion of a variable
24. For a conditional to be true the conjunction “ p. ̴q “ must be ……………….
25. ‘Everything is mortal ‘ is symbolized as …………