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Mirrors > Home > LLPE Home > Th. List > ax-nui | Structured version |
Description: A wff can be surrounded by a variable abstraction |
Ref | Expression |
---|---|
ax-nui | ⊦ (𝜑 ⊸ νx𝜑) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . 2 wff 𝜑 | |
2 | vx | . . 3 var x | |
3 | 1, 2 | wnu 206 | . 2 wff νx𝜑 |
4 | 1, 3 | wli 61 | 1 wff (𝜑 ⊸ νx𝜑) |
Colors of variables: wff var nilad |
This axiom is referenced by: (None) |
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