SHAWN MICHAEL STANDEFER2021-11-262021-11-2620210022-36111573-0433https://scholars.lib.ntu.edu.tw/handle/123456789/587922Mares and Goldblatt (The Journal of Symbolic Logic, 71(01), 163–187, 2006) provided an alternative frame semantics for two quantified extensions of the relevant logic R. In this paper, I show how to extend the Mares-Goldblatt frames to accommodate identity. Simpler frames are provided for two zero-order logics en route to the full logic in order to clarify what is needed for identity and substitution, as opposed to quantification. I close with a comparison of this work with the Fine-Mares models for relevant logics with identity and a discussion of constant and variable domains.Identity | Mares-Goldblatt frames | Relevant logicjournal article10.1007/s10992-021-09603-x2-s2.0-85106430080https://doi.org/10.1007/s10992-021-09603-x94254506