{ "name": "Lattices and boolean algebras", "order": 17, "challenges": [ { "id": "59a5801209a6acac5983b641", "title": "Lattices", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b035", "title": "Boolean algebras", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b036", "title": "Algebra of electrical circuits", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }