Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > w3a | Structured version Visualization version GIF version |
Description: Extend wff definition to include three-way conjunction ('and'). |
Ref | Expression |
---|---|
wph | wff 𝜑 |
wps | wff 𝜓 |
wch | wff 𝜒 |
Ref | Expression |
---|---|
w3a | wff (𝜑 ∧ 𝜓 ∧ 𝜒) |
Colors of variables: wff setvar class |
Copyright terms: Public domain | W3C validator |