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Mirrors > Home > LLPE Home > Th. List > ax-nure | Structured version |
Description: Commutation of ν with ≫. |
Ref | Expression |
---|---|
ax-nure | ⊦ (νx[u ≫ v] 𝜑 ⧟ [u ≫ v] νx𝜑) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . . . 4 wff 𝜑 | |
2 | vv | . . . 4 var v | |
3 | vu | . . . . 5 var u | |
4 | 3 | nvar 203 | . . . 4 nilad u |
5 | 1, 2, 4 | wre 205 | . . 3 wff [u ≫ v] 𝜑 |
6 | vx | . . 3 var x | |
7 | 5, 6 | wnu 206 | . 2 wff νx[u ≫ v] 𝜑 |
8 | 1, 6 | wnu 206 | . . 3 wff νx𝜑 |
9 | 8, 2, 4 | wre 205 | . 2 wff [u ≫ v] νx𝜑 |
10 | 7, 9 | wlb 55 | 1 wff (νx[u ≫ v] 𝜑 ⧟ [u ≫ v] νx𝜑) |
Colors of variables: wff var nilad |
This axiom is referenced by: (None) |
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