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| Mirrors > Home > PE Home > Th. List > ndsubmultr-P7.24e | |||
| Description: Natural Deduction: Function Substitution Rule ('⋅' right). |
| Ref | Expression |
|---|---|
| ndsubmultr-P7.24e.1 | ⊢ (𝛾 → 𝑡 = 𝑢) |
| Ref | Expression |
|---|---|
| ndsubmultr-P7.24e | ⊢ (𝛾 → (𝑤 ⋅ 𝑡) = (𝑤 ⋅ 𝑢)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ndsubmultr-P7.24e.1 | . 2 ⊢ (𝛾 → 𝑡 = 𝑢) | |
| 2 | 1 | submultr-P5 650 | 1 ⊢ (𝛾 → (𝑤 ⋅ 𝑡) = (𝑤 ⋅ 𝑢)) |
| Colors of variables: wff objvar term class |
| Syntax hints: ⋅ term-mult 5 = wff-equals 6 → wff-imp 10 |
| This theorem was proved from axioms: ax-L1 11 ax-L2 12 ax-L3 13 ax-MP 14 ax-L9-multr 26 |
| This theorem depends on definitions: df-bi-D2.1 107 df-and-D2.2 133 df-true-D2.4 155 |
| This theorem is referenced by: ndsubmultd-P7 859 ndsubmultr-P7.24e.RC 902 ndsubmultr-P7.24e.CL 922 |
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