III · Science
Logical labyrinths
Subjects
Logic, Symbolic and mathematical · Mathematical recreations · Puzzles · Symbolic and mathematical Logic · Logic puzzles · Logique symbolique et mathématique
Language
ENG




![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](https://covers.openlibrary.org/b/id/10200621-M.jpg)
