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Mirrors > Home > ILE Home > Th. List > nfel2 | Unicode version |
Description: Hypothesis builder for elementhood, special case. (Contributed by Mario Carneiro, 10-Oct-2016.) |
Ref | Expression |
---|---|
nfeq2.1 |
Ref | Expression |
---|---|
nfel2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2178 | . 2 | |
2 | nfeq2.1 | . 2 | |
3 | 1, 2 | nfel 2186 | 1 |
Colors of variables: wff set class |
Syntax hints: wnf 1349 wcel 1393 wnfc 2165 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-tru 1246 df-nf 1350 df-sb 1646 df-cleq 2033 df-clel 2036 df-nfc 2167 |
This theorem is referenced by: elabgt 2684 opelopabsb 3997 eliunxp 4475 opeliunxp2 4476 tz6.12f 5202 0neqopab 5550 |
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