Self-study
Is A->B A->C therefore, B some C a valid argument, since A-m-> B and A-m->C therefore B some C is valid.
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Is A->B A->C therefore, B some C a valid argument, since A-m-> B and A-m->C therefore B some C is valid.
1 comments
Both are valid argument forms. The CC lists these under the advanced valid argument forms lesson along with examples.