Have I drawn this Venn diagram correctly? Does this look correct? I'm trying to find out whether this syllogism is valid (I'm guessing it's not valid) Many thanks

The following argument is invalid:

(P1): All **C** acti are **P** lants. (P2): Some **P** lants are **G** reen. Conclusion: Some **C** acti are not **G** reen.

It's just that the non-Green plants needn't have any Cacti among them. The Venn diagram below illustrates that. Note that the diagram satisfies both (P1) and (P2), as required.

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