| 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 2178, ax-12 2213. (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 3740 | . 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 3625 | . 2 ⊢ (𝜑 → (𝐴 ∈ {𝑥 ∣ 𝜓} ↔ 𝜒)) |
| 5 | 1, 4 | bitrid 286 | 1 ⊢ (𝜑 → ([𝐴 / 𝑥]𝜓 ↔ 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 {cab 2738 [wsbc 3739 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-sbc 3740 |
| This theorem is used by: sbcied2 3783 sbc2ie 3814 sbc2iedv 3815 sbc3ie 3816 sbcralt 3819 csbied 3883 euotd 5490 fmptsnd 7167 riota5f 7398 mpof1o2d 8123 fpwwe2lem11 10650 fpwwe2lem12 10651 brfi1uzind 14573 opfi1uzind 14576 sbcie3s 17254 issubc 17924 gsumvalx 18778 dmdprd 20127 dprdval 20132 isomnd 20250 issrg 20327 issrng 21010 isorng 21027 islmhm 21211 isphl 21841 istmd 24300 istgp 24303 isnlm 24901 isclm 25292 iscph 25398 iscms 25573 limcfval 26099 ewlksfval 30061 sbcies 32963 abfmpeld 33127 abfmpel 33128 rprmval 33926 |
| Copyright terms: Public domain | W3C validator |