Keyboard graph navigation: press N for concepts or E for relations; use arrow keys, Home, and End to move; Enter selects; Shift plus Enter selects and centers; plus and minus zoom; zero fits; Escape clears the selection. Use the visible viewport buttons as alternatives to dragging, wheel, and pinch gestures.
Canonical static concept record
Open this concept in the interactive graphRead the Markdown equivalent
A bounded distributive lattice in which every element has a complement.
wp-boolean-algebranlab-boolean-algebragierz-orderEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Require every element to have a complement; distributivity makes it unique.
Keep the existing data and select the subclass satisfying an additional law, existence condition, finiteness condition, or other property.
wp-boolean-algebragierz-orderEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Require arbitrary joins and meets.
Keep the existing data and select the subclass satisfying an additional law, existence condition, finiteness condition, or other property.
wp-complete-latticegierz-orderThis is an authored directed relation from the source endpoint to the target endpoint.
Add a normal unary operator interpreting necessity.
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
wp-modal-algebraopenlogic-model-theory