  where the ‘┌’ and ‘┐’ are the left and right corner quotes. (See also Smullyan 1957, Mates 1972, p. 21; Wallace 1972, p. 237; Salmon 1986, p. 6, Gomez-Torrente 2001, Botteral and Stainton 2005. A nearby view is the minimalism of Cappelen and Lepore 2007; discussion of it can be found in Garcia-Carpintero 2011.)