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Venn diagrams exercise V04.3

Evaluating validity - ex V04.3

This page generates a random list of arguments. See if you can determine whether they are valid or not.

Every C is a B
No A is a B
⇒ Every A is a C
[Show answer]
Every C is a B
No C is an A
⇒ No A is a B
[Show answer]
No C is a B
Every C is an A
⇒ Every A is a C
[Show answer]
No C is a B
No B is an A
⇒ No A is a C
[Show answer]
Every A is a C
Every B is a C
⇒ Every C is a B
[Show answer]
No A is a B
No C is an A
⇒ No C is a B
[Show answer]
Every A is a B
No C is an A
⇒ No B is a C
[Show answer]
No B is a C
Every C is an A
⇒ Every B is an A
[Show answer]
No B is a C
Every C is an A
⇒ No A is a B
[Show answer]
No A is a C
Every C is a B
⇒ No A is a B
[Show answer]


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Quote of the page

I carry my thoughts about with me for a long time, often for a very long time, before writing them down.


Ludwig van Beethoven