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Related theorems GIF version |
| Description: 2-variable restricted specialization, using implicit substitition. |
| Ref | Expression |
|---|---|
| rcla42v.1 | ⊢ (x = A → (φ ↔ χ)) |
| rcla42v.2 | ⊢ (y = B → (χ ↔ ψ)) |
| Ref | Expression |
|---|---|
| rcla42v | ⊢ ((A ∈ C ⋀ B ∈ D) → (∀x ∈ C ∀y ∈ D φ → ψ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rcla42v.1 | . . . 4 ⊢ (x = A → (φ ↔ χ)) | |
| 2 | 1 | ralbidv 1710 | . . 3 ⊢ (x = A → (∀y ∈ D φ ↔ ∀y ∈ D χ)) |
| 3 | 2 | rcla4v 1920 | . 2 ⊢ (A ∈ C → (∀x ∈ C ∀y ∈ D φ → ∀y ∈ D χ)) |
| 4 | rcla42v.2 | . . 3 ⊢ (y = B → (χ ↔ ψ)) | |
| 5 | 4 | rcla4v 1920 | . 2 ⊢ (B ∈ D → (∀y ∈ D χ → ψ)) |
| 6 | 3, 5 | sylan9 479 | 1 ⊢ ((A ∈ C ⋀ B ∈ D) → (∀x ∈ C ∀y ∈ D φ → ψ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ↔ wb 153 ⋀ wa 230 = wceq 997 ∈ wcel 999 ∀wral 1692 |
| This theorem is referenced by: rcla43v 1929 isorel 3952 isocnv 3954 isotr 3955 isotrALT 3956 foprcl 4073 fiint 4620 seq1rn2 6580 seqzrn2 6645 infxpidmlem7 7650 inopn 7691 basis1 7703 basis2 7704 tgss2 7726 hausnei 7869 meteq0 7897 metcni 7979 ablcom 8187 ghgrpilem1 8217 nvs 8374 nvtri 8382 phpar2 8566 phpar 8567 logltb 8859 shaddcl 9168 shaddclOLD 9169 shmulcl 9170 shmulclOLD 9171 unop 9922 hmop 9929 adj1 9940 hstel2 10230 stj 10246 stcltr1i 10285 mddmdin0i 10442 cdj3lem1 10445 cdj3lem2b 10448 ghomlin 10478 ghomf1olem 10481 filint 10656 cmppfd 10760 domcmpd 10761 codcmpd 10762 cmpida 10789 cmpidb 10790 ismonb2 10822 cmpmon 10825 isepib2 10832 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-12 1009 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-ext 1504 |
| This theorem depends on definitions: df-bi 154 df-an 232 df-ex 1022 df-sb 1214 df-clab 1510 df-cleq 1515 df-clel 1518 df-ral 1696 df-v 1859 |