| substitutivity (ˌsʌbstɪtjuːˈtɪvɪtɪ) | |
| —n | |
| logic, philosophy transparent context See also opaque context the principle that expressions with the same reference can be substituted for one another without affecting the truth-value of any context in which they occur | |
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| a gadget; dingus; thingumbob. |
| a scrap or morsel of food left at a meal. |