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Mirrors > Home > LLPE Home > Th. List > mccob | Structured version |
Description: ⊗ is commutative. Biconditional version of mcco 115. |
Ref | Expression |
---|---|
mccob | ⊦ ((𝜑 ⊗ 𝜓) ⧟ (𝜓 ⊗ 𝜑)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mcco 115 | . 2 ⊦ ((𝜑 ⊗ 𝜓) ⊸ (𝜓 ⊗ 𝜑)) | |
2 | mcco 115 | . 2 ⊦ ((𝜓 ⊗ 𝜑) ⊸ (𝜑 ⊗ 𝜓)) | |
3 | 1, 2 | ilb 96 | 1 ⊦ ((𝜑 ⊗ 𝜓) ⧟ (𝜓 ⊗ 𝜑)) |
Colors of variables: wff var nilad |
Syntax hints: ⧟ wlb 55 ⊗ wmc 105 |
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-iac 32 ax-eac1 33 ax-eac2 34 |
This theorem depends on definitions: df-lb 56 df-li 62 df-mc 106 |
This theorem is referenced by: (None) |
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