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| Mirrors > Home > ILE Home > Th. List > ssrab3 | GIF version | ||
| Description: Subclass relation for a restricted class abstraction. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) |
| Ref | Expression |
|---|---|
| ssrab3.1 | ⊢ 𝐵 = {𝑥 ∈ 𝐴 ∣ 𝜑} |
| Ref | Expression |
|---|---|
| ssrab3 | ⊢ 𝐵 ⊆ 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrab3.1 | . 2 ⊢ 𝐵 = {𝑥 ∈ 𝐴 ∣ 𝜑} | |
| 2 | ssrab2 3333 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 3 | 1, 2 | eqsstri 3280 | 1 ⊢ 𝐵 ⊆ 𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 {crab 2532 ⊆ wss 3220 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rab 2537 df-in 3226 df-ss 3233 |
| This theorem is used by: if0ss 3642 pcprecl 13090 pcprendvds 13091 4sqlem13m 13204 4sqlem14 13205 4sqlem17 13208 ballotfilemfmpn 13285 ballotfilemafi 13289 ballotfilembfi 13290 ballotfilemth 13332 nmzsubg 14064 nmznsg 14067 conjnmz 14133 conjnmzb 14134 nzrring 14541 lringnzr 14551 rrgeq0 14624 rrgss 14626 psrbagconf1o 15116 mpodvdsmulf1o 16206 fsumdvdsmul 16207 lgsfcl2 16247 |
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