| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > sbcied | Structured version Visualization version GIF version | ||
| Description: Conversion of implicit substitution to explicit class substitution, deduction form. (Contributed by NM, 13-Dec-2014.) Avoid ax-10 2144, ax-12 2180. (Revised by GG, 12-Oct-2024.) |
| Ref | Expression |
|---|---|
| sbcied.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| sbcied.2 | ⊢ ((𝜑 ∧ 𝑥 = 𝐴) → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| sbcied | ⊢ (𝜑 → ([𝐴 / 𝑥]𝜓 ↔ 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-sbc 3742 | . 2 ⊢ ([𝐴 / 𝑥]𝜓 ↔ 𝐴 ∈ {𝑥 ∣ 𝜓}) | |
| 2 | sbcied.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 3 | sbcied.2 | . . 3 ⊢ ((𝜑 ∧ 𝑥 = 𝐴) → (𝜓 ↔ 𝜒)) | |
| 4 | 2, 3 | elabd3 3626 | . 2 ⊢ (𝜑 → (𝐴 ∈ {𝑥 ∣ 𝜓} ↔ 𝜒)) |
| 5 | 1, 4 | bitrid 283 | 1 ⊢ (𝜑 → ([𝐴 / 𝑥]𝜓 ↔ 𝜒)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2111 {cab 2709 [wsbc 3741 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-ext 2703 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2710 df-cleq 2723 df-clel 2806 df-sbc 3742 |
| This theorem is referenced by: sbcied2 3786 sbc2ie 3817 sbc2iedv 3818 sbc3ie 3819 sbcralt 3823 csbied 3886 euotd 5453 fmptsnd 7103 riota5f 7331 fpwwe2lem11 10532 fpwwe2lem12 10533 brfi1uzind 14415 opfi1uzind 14418 sbcie3s 17073 issubc 17742 gsumvalx 18584 dmdprd 19913 dprdval 19918 isomnd 20036 issrg 20107 issrng 20760 isorng 20777 islmhm 20962 isphl 21566 istmd 23990 istgp 23993 isnlm 24591 isclm 24992 iscph 25098 iscms 25273 limcfval 25801 ewlksfval 29581 sbcies 32465 abfmpeld 32634 abfmpel 32635 rprmval 33479 f1o2d2 42272 |
| Copyright terms: Public domain | W3C validator |