Random Graph: Stronger logic but with the zero one law

Saharon Shelah

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arXiv · 1511.05383

Random Graph: Stronger logic but with the zero one law

Saharon Shelah

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Abstract

We find a logic really stronger than first order for the random graph with edge probability $\frac 12$ but satisfies the 0-1 law. This means that on the one hand it satisfies the 0-1 law, e.g. for the random graph ${\mathcal G}_{n,1/2}$ and on the other hand there is a formula $φ(x)$ such that for no first order $ψ(x)$ do we have: for every random enough ${\mathcal G}_{n,1/2}$ the formulas $φ(x),ψ(x)$ equivalent in it.

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BibTeX RIS

Saharon Shelah. 2021-07-15. Random Graph: Stronger logic but with the zero one law. https://arxiv.org/abs/1511.05383

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