presuposition and entailment

A: Where is is the man with megaphone?

B: There is a ma with a megaphone

• The B sentence is a presupposition of the sentence A

• The B sentence is a entailment of the sentence A

A: My dog Richard was killed in a car accident

B: My dof Richard is dead

• The B sentence is a entaiment of the sentence A

• The B sentence is a presupposition of the sentence A

Sentences that stand in an implicational relation, where the truth of the first guarantees the truth of the second

• Presupposition

• Entailment

•Entailments depend on sentence meaning, not the context in which the sentence is used.

• True

• False

Choose the correct sentence:

• The speaker can produce a very large number of background entailments but the speaker cannot indicate how these entailments are to be ordered

• One sentence has only one background entailment and one foreground entailment.

• Foreground entailments which is defined by stress, is more important for interpreting intended meaning.