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Mirrors > Home > MPE Home > Th. List > Mathboxes > rspsbc2VD | Structured version Visualization version GIF version |
Description: Virtual deduction proof of rspsbc2 37765. The following user's proof is
completed by invoking mmj2's unify command and using mmj2's StepSelector
to pick all remaining steps of the Metamath proof.
|
Ref | Expression |
---|---|
rspsbc2VD | ⊢ (𝐴 ∈ 𝐵 → (𝐶 ∈ 𝐷 → (∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 → [𝐶 / 𝑦][𝐴 / 𝑥]𝜑))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | idn2 37859 | . . . . 5 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 ▶ 𝐶 ∈ 𝐷 ) | |
2 | idn1 37811 | . . . . . 6 ⊢ ( 𝐴 ∈ 𝐵 ▶ 𝐴 ∈ 𝐵 ) | |
3 | idn3 37861 | . . . . . . 7 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 , ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 ▶ ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 ) | |
4 | rspsbc 3484 | . . . . . . 7 ⊢ (𝐴 ∈ 𝐵 → (∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 → [𝐴 / 𝑥]∀𝑦 ∈ 𝐷 𝜑)) | |
5 | 2, 3, 4 | e13 37996 | . . . . . 6 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 , ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 ▶ [𝐴 / 𝑥]∀𝑦 ∈ 𝐷 𝜑 ) |
6 | sbcralg 3480 | . . . . . . 7 ⊢ (𝐴 ∈ 𝐵 → ([𝐴 / 𝑥]∀𝑦 ∈ 𝐷 𝜑 ↔ ∀𝑦 ∈ 𝐷 [𝐴 / 𝑥]𝜑)) | |
7 | 6 | biimpd 218 | . . . . . 6 ⊢ (𝐴 ∈ 𝐵 → ([𝐴 / 𝑥]∀𝑦 ∈ 𝐷 𝜑 → ∀𝑦 ∈ 𝐷 [𝐴 / 𝑥]𝜑)) |
8 | 2, 5, 7 | e13 37996 | . . . . 5 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 , ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 ▶ ∀𝑦 ∈ 𝐷 [𝐴 / 𝑥]𝜑 ) |
9 | rspsbc 3484 | . . . . 5 ⊢ (𝐶 ∈ 𝐷 → (∀𝑦 ∈ 𝐷 [𝐴 / 𝑥]𝜑 → [𝐶 / 𝑦][𝐴 / 𝑥]𝜑)) | |
10 | 1, 8, 9 | e23 38003 | . . . 4 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 , ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 ▶ [𝐶 / 𝑦][𝐴 / 𝑥]𝜑 ) |
11 | 10 | in3 37855 | . . 3 ⊢ ( 𝐴 ∈ 𝐵 , 𝐶 ∈ 𝐷 ▶ (∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 → [𝐶 / 𝑦][𝐴 / 𝑥]𝜑) ) |
12 | 11 | in2 37851 | . 2 ⊢ ( 𝐴 ∈ 𝐵 ▶ (𝐶 ∈ 𝐷 → (∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 → [𝐶 / 𝑦][𝐴 / 𝑥]𝜑)) ) |
13 | 12 | in1 37808 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐶 ∈ 𝐷 → (∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐷 𝜑 → [𝐶 / 𝑦][𝐴 / 𝑥]𝜑))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 ∀wral 2896 [wsbc 3402 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-v 3175 df-sbc 3403 df-vd1 37807 df-vd2 37815 df-vd3 37827 |
This theorem is referenced by: (None) |
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