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| Mirrors > Home > ILE Home > Th. List > rspc2va | GIF version | ||
| Description: 2-variable restricted specialization, using implicit substitution. (Contributed by NM, 18-Jun-2014.) |
| Ref | Expression |
|---|---|
| rspc2v.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) |
| rspc2v.2 | ⊢ (𝑦 = 𝐵 → (𝜒 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| rspc2va | ⊢ (((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) ∧ ∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑) → 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rspc2v.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) | |
| 2 | rspc2v.2 | . . 3 ⊢ (𝑦 = 𝐵 → (𝜒 ↔ 𝜓)) | |
| 3 | 1, 2 | rspc2v 2923 | . 2 ⊢ ((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑 → 𝜓)) |
| 4 | 3 | imp 124 | 1 ⊢ (((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) ∧ ∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑) → 𝜓) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1397 ∈ wcel 2202 ∀wral 2510 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-v 2804 |
| This theorem is referenced by: swopo 4403 ordtri2orexmid 4621 onsucelsucexmid 4628 ordsucunielexmid 4629 ordtri2or2exmid 4669 ontri2orexmidim 4670 isocnv 5951 isotr 5956 ovrspc2v 6043 off 6247 caofrss 6266 oprssdmm 6333 tridc 7088 eqsndc 7094 tpfidceq 7121 fidcenumlemrks 7151 seq3caopr2 10754 seqcaopr2g 10755 seq3distr 10793 isprm6 12718 mhmpropd 13548 grpidssd 13658 grpinvssd 13659 dfgrp3mlem 13680 isnsg3 13793 domneq0 14285 comet 15222 mulcncf 15331 trilpo 16647 neapmkv 16672 |
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