Variations of the Shifting Lemma and Goursat categories
We prove that Mal'tsev and Goursat categories may be characterized through variations of the Shifting Lemma, that is classically expressed in terms of three congruences R, S and T, and characterizes congruence modular varieties. We first show that a regular category C is a Mal'tsev categor...
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| Other Authors: | , |
| Format: | article |
| Language: | eng |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10400.1/14408 |
| Country: | Portugal |
| Oai: | oai:sapientia.ualg.pt:10400.1/14408 |