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Relational operators may be represented between expressions using the notation shown in the table below:

Meaning

Equivalent

Subsumed by

Subsumes

Symbol

Diagramming Guideline > 4.6 Relational Operators > worddav2f6d7bcc4060f4aad98ac640091b83f6.png

Diagramming Guideline > 4.6 Relational Operators > worddav22a269ec44cf372774ef518e0f5e5621.png

Diagramming Guideline > 4.6 Relational Operators > worddav9c4abce33624a416f11624c297af2d8d.png

Character

≣

⊑

⊒

Unicode
character

Unicode: U+2263

UTF-8: E2 89 A3

Unicode: U+2291

UTF-8: E2 8A 91

Unicode: U+2292

UTF-8: E2 8A 92

The characters ≣, ⊑ and ⊒ are only present in fonts that support the full set of Unicode characters. For example users of Microsoft tools will find these characters in the font called "Arial Unicode MS".