The String $p\ r\ q \rightarrow \neg q \triangle p \rightarrow \wedge$

question 15

Essay

The string $p\ r\ q \rightarrow \neg q \triangle p \rightarrow \wedge$ is postfix notation for a logic expression; however, there is a misprint. The triangle should be one of these three: $r , V , Or \neg$ Determine which of these three it must be and explain your reasoning.

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Definitions:

Revocation

The act of withdrawing, repealing, or cancelling a right, permission, or contract.

Effective Acceptance

The expression of assent to the terms of an offer in a manner requested or authorized by the offeror, resulting in a binding contract.

Firm Offer

An offer in a contract that is expressed in a way that it cannot be revoked for a certain period of time.

Merchant

An individual or business entity engaged in the trade of goods, services, or both, to consumers.