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Mirrors > Home > LLPE Home > Th. List > mdm2i | Structured version |
Description: Par is monotone in its second argument. Inference form of mdm2 69. Essentially ax-cut 6 using linear implication. |
Ref | Expression |
---|---|
mdm2i.1 | ⊦ (𝜑 ⅋ 𝜓) |
mdm2i.2 | ⊦ (𝜓 ⊸ 𝜒) |
Ref | Expression |
---|---|
mdm2i | ⊦ (𝜑 ⅋ 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mdm2i.1 | . . . 4 ⊦ (𝜑 ⅋ 𝜓) | |
2 | 1 | ax-ibot 4 | . . 3 ⊦ (⊥ ⅋ (𝜑 ⅋ 𝜓)) |
3 | mdm2i.2 | . . 3 ⊦ (𝜓 ⊸ 𝜒) | |
4 | 2, 3 | mdm2 69 | . 2 ⊦ (⊥ ⅋ (𝜑 ⅋ 𝜒)) |
5 | 4 | ax-ebot 5 | 1 ⊦ (𝜑 ⅋ 𝜒) |
Colors of variables: wff var nilad |
Syntax hints: ⊥wbot 1 ⅋ wmd 2 ⊸ wli 61 |
This theorem was proved from axioms: ax-ibot 4 ax-ebot 5 ax-cut 6 ax-init 7 ax-mdco 8 ax-mdas 9 ax-eac1 33 |
This theorem depends on definitions: df-lb 56 df-li 62 |
This theorem is referenced by: lmp 76 acm1 80 |
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