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Mirrors > Home > MPE Home > Th. List > animpimp2impd | Structured version Visualization version GIF version |
Description: Deduction deriving nested implications from conjunctions. (Contributed by AV, 21-Aug-2022.) |
Ref | Expression |
---|---|
animpimp2impd.1 | ⊢ ((𝜓 ∧ 𝜑) → (𝜒 → (𝜃 → 𝜂))) |
animpimp2impd.2 | ⊢ ((𝜓 ∧ (𝜑 ∧ 𝜃)) → (𝜂 → 𝜏)) |
Ref | Expression |
---|---|
animpimp2impd | ⊢ (𝜑 → ((𝜓 → 𝜒) → (𝜓 → (𝜃 → 𝜏)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | animpimp2impd.1 | . . . 4 ⊢ ((𝜓 ∧ 𝜑) → (𝜒 → (𝜃 → 𝜂))) | |
2 | animpimp2impd.2 | . . . . . 6 ⊢ ((𝜓 ∧ (𝜑 ∧ 𝜃)) → (𝜂 → 𝜏)) | |
3 | 2 | expr 457 | . . . . 5 ⊢ ((𝜓 ∧ 𝜑) → (𝜃 → (𝜂 → 𝜏))) |
4 | 3 | a2d 29 | . . . 4 ⊢ ((𝜓 ∧ 𝜑) → ((𝜃 → 𝜂) → (𝜃 → 𝜏))) |
5 | 1, 4 | syld 47 | . . 3 ⊢ ((𝜓 ∧ 𝜑) → (𝜒 → (𝜃 → 𝜏))) |
6 | 5 | expcom 414 | . 2 ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → 𝜏)))) |
7 | 6 | a2d 29 | 1 ⊢ (𝜑 → ((𝜓 → 𝜒) → (𝜓 → (𝜃 → 𝜏)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 |
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 206 df-an 397 |
This theorem is referenced by: seqcl2 13988 seqfveq2 13992 seqshft2 13996 monoord 14000 seqsplit 14003 seqid2 14016 seqhomo 14017 sylow1lem1 19468 imasdsf1olem 23886 ovolicc2lem3 25043 dvnres 25455 cvmliftlem7 34351 cvmliftlem10 34354 monoordxrv 44277 smonoord 46124 |
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