Select the code, which is not correct about Venn diagram:
A. Venn diagram represents propositions as well as classes.
B. It can provide clear method of notation.
C. It can be either valid or invalid.
D. It can provide the direct method of testing the validity.
Answer:C
Select the code, which is not correct about Venn diagram:
A. Venn diagram represents propositions as well as classes. B. It can provide clear method of notation. C. It can be either valid or invalid. D. It can provide the direct method of testing the validity.