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| Description: Membership in a domain. Theorem 4 of [Suppes] p. 59. |
| Ref | Expression |
|---|---|
| eldm.1 |
|
| Ref | Expression |
|---|---|
| eldm2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eldm.1 |
. . 3
| |
| 2 | 1 | eldm 3307 |
. 2
|
| 3 | df-br 2620 |
. . 3
| |
| 4 | 3 | exbii 1051 |
. 2
|
| 5 | 2, 4 | bitr 173 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eldm2g 3309 dmss 3310 opeldm 3314 dmun 3317 dmin 3318 dmuni 3319 reldm0 3331 dmrnssfld 3357 dmcosseq 3365 dmres 3380 iss 3397 relssdr 3513 dffun7 3540 funssres 3552 fn0 3605 dmfco 3773 tfrlem9 3919 1st2val 4095 tz9.12lem3 4661 cnlnssadj 10013 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-12 968 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 981 df-sb 1172 df-clab 1464 df-cleq 1469 df-clel 1472 df-v 1812 df-un 2050 df-sn 2412 df-pr 2413 df-op 2416 df-br 2620 df-dm 3188 |