Hi, I need help with simply starting to prove this. I'm terrible with proofs and even the easy ones are hard for me. Any tips to get started in the right direction would be appreciated.(adsbygoogle = window.adsbygoogle || []).push({});

A city represented by an infinite square grid of blocks is on fire. Every day, the status of city block is either burned or okay. Due to winds from the northeast, the status of a city block on Day i is the majority of the statuses of (1) that block, (2) its immediate northern neighbor, and (3) its immediate eastern neighbor from Day i - 1. Prove the following claim: If on Day 0 there are only n okay blocks remaining in the city, the entire city will be burned by Day n + 1.

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# Need help starting a proof about an infinite square grid.

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