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Mirrors > Home > LLPE Home > Th. List > mdasri | Structured version |
Description: ⅋ is associative. Inference form of mdasrd 16. |
Ref | Expression |
---|---|
mdasri.1 | ⊦ (𝜑 ⅋ (𝜓 ⅋ 𝜒)) |
Ref | Expression |
---|---|
mdasri | ⊦ ((𝜑 ⅋ 𝜓) ⅋ 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mdasri.1 | . . . 4 ⊦ (𝜑 ⅋ (𝜓 ⅋ 𝜒)) | |
2 | 1 | ax-ibot 4 | . . 3 ⊦ (⊥ ⅋ (𝜑 ⅋ (𝜓 ⅋ 𝜒))) |
3 | 2 | mdasrd 16 | . 2 ⊦ (⊥ ⅋ ((𝜑 ⅋ 𝜓) ⅋ 𝜒)) |
4 | 3 | ax-ebot 5 | 1 ⊦ ((𝜑 ⅋ 𝜓) ⅋ 𝜒) |
Colors of variables: wff var nilad |
Syntax hints: ⊥wbot 1 ⅋ wmd 2 |
This theorem was proved from axioms: ax-ibot 4 ax-ebot 5 ax-cut 6 ax-mdco 8 ax-mdas 9 |
This theorem is referenced by: dismdac 46 extmdac 47 mdm2 69 licond 95 md1 113 |
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