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| Mirrors > Home > MPE Home > Th. List > wrmo | Structured version Visualization version GIF version | ||
| Description: Extend wff notation to include restricted "at most one". |
| Ref | Expression |
|---|---|
| wph | wff 𝜑 |
| vx | setvar 𝑥 |
| cA | class 𝐴 |
| Ref | Expression |
|---|---|
| wrmo | wff ∃*𝑥 ∈ 𝐴 𝜑 |
| Colors of variables: wff setvar class |
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