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| Mirrors > Home > ILE Home > Th. List > elind | Unicode version | ||
| Description: Deduce membership in an intersection of two classes. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) |
| Ref | Expression |
|---|---|
| elind.1 |
|
| elind.2 |
|
| Ref | Expression |
|---|---|
| elind |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elind.1 |
. 2
| |
| 2 | elind.2 |
. 2
| |
| 3 | elin 3412 |
. 2
| |
| 4 | 1, 2, 3 | sylanbrc 421 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| 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-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-in 3226 |
| This theorem is used by: fnfvimad 5954 elfir 7307 infpwfidom 7551 hashfibclem 11298 ballotfilem2 13280 nninfdclemcl 13391 nninfdclemp1 13393 strslfv2d 13447 bassetsnn 13461 insubm 13845 2idl0 14933 2idl1 14934 aspval 15099 asplss 15100 aspsubrg 15102 baspartn 15242 bastg 15253 isopn3 15317 restbasg 15360 lmss 15438 metrest 15698 tgioo 15746 dvmulxxbr 15894 elply2 15927 pilem3 15976 ppiqsval 16201 ppiqsval2 16202 ppinprm 16221 chtnprm 16223 2sqlem7 16406 |
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