# PTE Re-order #37: The Evolution of Logical...

Re-order Paragraphs #37 - Level 3 - Feeds Reading

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- The discovery and formalisation of logic is attributed to Aristotle (384-322 BC) in his collected works, the Organon.
- There, he documented the first principle of reaching a conclusion from a set of premises.
- Since the 20th century, the field of logic has moved away from Aristotle's approach towards systems that use predicate and propositional logic.
- These types of logic have been developed by mathematicians for mathematical applications.

## Answer

1. The discovery and formalisation of logic is attributed to Aristotle (384-322 BC) in his collected works, the Organon.
2. There, he documented the first principle of reaching a conclusion from a set of premises.
3. Since the 20th century, the field of logic has moved away from Aristotle's approach towards systems that use predicate and propositional logic.
4. These types of logic have been developed by mathematicians for mathematical applications.

## Explanation

The sequence is correct because it follows a logical chronological progression: starting with the ancient origins, moving to the documentation of those ideas, transitioning to the 20th-century shift, and concluding with the modern application of these systems.

(Sentence 1): The paragraph starts by attributing the discovery of logic to Aristotle, establishing a historical context for its development. (Sentence 2): The second sentence highlights Aristotle's documentation of the first principle for reaching conclusions, emphasizing his foundational contribution. (Sentence 3): The third sentence notes the shift in logic since the 20th century, indicating a progression from Aristotle's methods to more complex systems. (Sentence 4): Finally, the last sentence discusses the development of predicate and propositional logic by mathematicians, linking these modern approaches to their applications in mathematics, thus concluding the evolution of the field logically.

## Hints

- Start by finding the sentence that introduces the historical figure who founded the field.
- Look for the sentence that uses a location-based pronoun to refer back to the specific works mentioned in the first sentence.

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