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| Mirrors > Home > ILE Home > Th. List > eldm2 | Unicode version | ||
| Description: Membership in a domain. Theorem 4 of [Suppes] p. 59. (Contributed by NM, 1-Aug-1994.) |
| Ref | Expression |
|---|---|
| eldm.1 |
|
| Ref | Expression |
|---|---|
| eldm2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eldm.1 |
. 2
| |
| 2 | eldm2g 4979 |
. 2
| |
| 3 | 1, 2 | ax-mp 5 |
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-3an 1011 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-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-br 4132 df-dm 4786 |
| This theorem is used by: dmss 4982 opeldm 4986 dmin 4991 dmiun 4992 dmuni 4993 dm0 4997 reldm0 5001 reldmm 5002 dmrnssfld 5047 dmcoss 5054 dmcosseq 5056 dmres 5086 iss 5112 dmxpss 5221 dmsnopg 5262 relssdmrn 5311 funssres 5423 fun11iun 5663 tfrlemibxssdm 6602 tfr1onlembxssdm 6618 tfrcllembxssdm 6631 fnpr2ob 13720 gsum2d2fi 14274 |
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