Compare and contrast the reference theory of meaning and the idea theory of meaning
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Solution :

Reference theory of meaning

The reference theory of meaning is defined as the theory of language which claims the meaning of an expression or the meaning of any word which lies or expresses the object that it points out in the world.

Idea theory of meaning

The idea theory of meaning is also known as the ideational theory of meaning. It mainly refers to the meaning that are mental representations which are provoked by some signs and symbols.

but whats the question? ?

explanation:

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.