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Mirrors > Home > MPE Home > Th. List > Mathboxes > dfvd2anir | Structured version Visualization version GIF version |
Description: Right-to-left inference form of dfvd2an 41724. (Contributed by Alan Sare, 23-Apr-2015.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
dfvd2anir.1 | ⊢ ((𝜑 ∧ 𝜓) → 𝜒) |
Ref | Expression |
---|---|
dfvd2anir | ⊢ ( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfvd2anir.1 | . 2 ⊢ ((𝜑 ∧ 𝜓) → 𝜒) | |
2 | dfvd2an 41724 | . 2 ⊢ (( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) ↔ ((𝜑 ∧ 𝜓) → 𝜒)) | |
3 | 1, 2 | mpbir 234 | 1 ⊢ ( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ( wvd1 41711 ( wvhc2 41722 |
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 210 df-vd1 41712 df-vhc2 41723 |
This theorem is referenced by: int3 41754 el021old 41843 el2122old 41861 el12 41868 |
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