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| Mirrors > Home > MPE Home > Th. List > Mathboxes > caltop | Structured version Visualization version GIF version | ||
| Description: Declare the syntax for an alternate ordered pair. | 
| Ref | Expression | 
|---|---|
| cA | class 𝐴 | 
| cB | class 𝐵 | 
| Ref | Expression | 
|---|---|
| caltop | class ⟪𝐴, 𝐵⟫ | 
| Colors of variables: wff setvar class | 
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