| New Foundations Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > NFE Home > Th. List > wb | Unicode version | ||
| Description: Extend our wff definition to include the biconditional connective. |
| Ref | Expression |
|---|---|
| wph |
|
| wps |
|
| Ref | Expression |
|---|---|
| wb |
|
| Colors of variables: wff setvar class |
| Copyright terms: Public domain | W3C validator |