Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A relation between elements of a set that is reflexive, symmetric, and transitive. It thus defines exclusive classes whose members bear the relation to each other and not to those in other classes (e.g., “having the same value of a measured property”)
- ‘You can't have a classification without an equivalence relation, and one of the three defining properties of an equivalence relation is transitivity.’
- ‘We are almost ready to define an equivalence relation between hyperreal numbers.’
- ‘In The classification of prime-power groups Hall introduces an equivalence relation called isoclinism to aid the classification of prime power groups.’
- ‘Thus, by imposing an adequate equivalence relation on proofs, any deductive system can be turned into a category.’
- ‘The ability to use this symmetrically is a part of the full equivalence relation.’
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Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.