| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > eqeltrri | Unicode version | ||
| Description: Substitution of equal classes into membership relation. (Contributed by NM, 5-Aug-1993.) |
| Ref | Expression |
|---|---|
| eqeltrr.1 |
|
| eqeltrr.2 |
|
| Ref | Expression |
|---|---|
| eqeltrri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqeltrr.1 |
. . 3
| |
| 2 | 1 | eqcomi 2242 |
. 2
|
| 3 | eqeltrr.2 |
. 2
| |
| 4 | 2, 3 | eqeltri 2311 |
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-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: 3eltr3i 2319 p0ex 4325 epse 4487 unex 4587 ordtri2orexmid 4670 onsucsssucexmid 4674 ordsoexmid 4709 ordtri2or2exmid 4718 ontri2orexmidim 4719 nnregexmid 4768 abrexex 6346 opabex3 6351 abrexex2 6353 abexssex 6354 abexex 6355 oprabrexex2 6363 tfr0dm 6593 exmidonfinlem 7545 1lt2pi 7707 prarloclemarch2 7786 prarloclemlt 7860 0cn 8318 resubcli 8589 0reALT 8623 10nn 9792 numsucc 9816 nummac 9821 qreccl 10042 unirnioo 10375 fz0to4untppr 10531 cats1fvn 11536 4sqlem19 13188 dec2dvds 13190 modsubi 13198 gcdi 13199 ballotfilemth 13281 fn0g 13695 fngzsum 13708 prdsex 14172 sn0topon 15189 retopbas 15624 blssioo 15654 hovercncf 15747 log2ublem2 16084 log2ublog2 16086 lgslem4 16122 konigsberglem1 16729 bj-unex 16945 exmidsbthrlem 17067 |
| Copyright terms: Public domain | W3C validator |