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Opposition (1984), p. 82
by Englebretsen, George
![]( /diagrams/englebretsen_1984_opposition_1dubb7msl_p-82_1edrcp3tr/images/display.jpeg?url=http%3A%2F%2Fpurl.org%2Flg%2Fdiagrams%2Fenglebretsen_1984_opposition_1dubb7msl_p-82_1edrcp3tr%2Fimages%2Fdisplay.jpeg )
Copyright according to our policy
- Aristotelian family
- A Single PCD
- Boolean complexity
- 2
- Number of labels per vertex (at most)
- 2
- Equivalence between (some) labels of the same vertex
- Yes
- Analogy between (some) labels of the same vertex
- No
- Uniqueness of the vertices up to logical equivalence
- Yes
- Errors in the diagram
- No
- Shape
- Digon (regular)
- Colinearity range
- 0
- Coplanarity range
- 0
- Cospatiality range
- 0
- Representation of contradiction
- By central symmetry
Logic
Geometry
- Conceptual info
- No
- Mnemonic support (AEIO, purpurea ...)
- No
- Form
- none
- Label type
- linguistic
- Language
- English
- Lexical field
- syllogistics
- Contains partial sentences or single words
- No
- Contains abbreviations
- Yes
Vertex description
Edge description
- Diagram is colored
- No
- Diagram is embellished
- No
- Tags
- Boolean closed
Style
Additional notes
- 't' is a singular term, i.e. it has a singleton as its extension.