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Mirrors > Home > ILE Home > Th. List > sbcieg | GIF version |
Description: Conversion of implicit substitution to explicit class substitution. (Contributed by NM, 10-Nov-2005.) |
Ref | Expression |
---|---|
sbcieg.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
sbcieg | ⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1521 | . 2 ⊢ Ⅎ𝑥𝜓 | |
2 | sbcieg.1 | . 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
3 | 1, 2 | sbciegf 2986 | 1 ⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 104 = wceq 1348 ∈ wcel 2141 [wsbc 2955 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-v 2732 df-sbc 2956 |
This theorem is referenced by: sbcie 2989 ralsng 3623 rexsng 3624 ralrnmpt 5638 rexrnmpt 5639 nn1suc 8897 cjth 10810 bezoutlemnewy 11951 bezoutlemstep 11952 bezoutlema 11954 bezoutlemb 11955 prmind2 12074 |
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