# Technical Report: Using Loop Scopes with for-Loops

**Authors:** Nathan Wasser, Dominic Steinhöfel  
**arXiv:** [1901.06839](https://arxiv.org/abs/1901.06839)  
**Date:** 2019-01-21  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/1901.06839v2/

## Key points

- Loop scopes are effective in establishing sound loop invariant rules without program transformation
- Loop scopes extended to for-loops with sound loop unrolling rules
- Rules for handling loops do not require program transformation or nested modalities
- Handling for-loops as first-class citizens simplifies semi-automated proofs
- Wasser and Steinhöfel's work provides valuable insights to computer science programming languages

## Summary

In their technical report titled "Using Loop Scopes with for-Loops," authors Nathan Wasser and Dominic Steinhöfel discuss the effectiveness of loop scopes in establishing sound loop invariant rules without the need for program transformation. They extend this concept to for-loops and introduce sound loop unrolling rules for both loop types. These rules do not require program transformation or nested modalities, making it easier to handle for-loops as first-class citizens rather than converting them into while-loops. This simplifies semi-automated proofs and makes them more accessible to users who may need assistance in completing the proof process. Wasser and Steinhöfel's emphasis on loop scopes and innovative strategies for handling loops contribute valuable insights to the field of computer science programming languages.