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Mirrors > Home > MPE Home > Th. List > Mathboxes > vd01 | Structured version Visualization version GIF version |
Description: A virtual hypothesis virtually infers a theorem. (Contributed by Alan Sare, 14-Jun-2011.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
vd01.1 | ⊢ 𝜑 |
Ref | Expression |
---|---|
vd01 | ⊢ ( 𝜓 ▶ 𝜑 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vd01.1 | . . 3 ⊢ 𝜑 | |
2 | 1 | a1i 11 | . 2 ⊢ (𝜓 → 𝜑) |
3 | 2 | dfvd1ir 40914 | 1 ⊢ ( 𝜓 ▶ 𝜑 ) |
Colors of variables: wff setvar class |
Syntax hints: ( wvd1 40910 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 209 df-vd1 40911 |
This theorem is referenced by: e210 41000 e201 41002 e021 41006 e012 41008 e102 41010 e110 41017 e101 41019 e011 41021 e100 41023 e010 41025 e001 41027 e01 41032 e10 41035 sspwimpVD 41260 |
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