This paper recounts the history and solution of the problem of admissibility of the rule γ in the context of E and other relevance logics.
CITATION STYLE
Urquhart, A. (2016). The Story of γ. In Outstanding Contributions to Logic (Vol. 8, pp. 93–105). Springer. https://doi.org/10.1007/978-3-319-29300-4_6
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