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Mirrors > Home > ILE Home > Th. List > intiin | Unicode version |
Description: Class intersection in terms of indexed intersection. Definition in [Stoll] p. 44. (Contributed by NM, 28-Jun-1998.) |
Ref | Expression |
---|---|
intiin |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfint2 3743 | . 2 | |
2 | df-iin 3786 | . 2 | |
3 | 1, 2 | eqtr4i 2141 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1316 cab 2103 wral 2393 cint 3741 ciin 3784 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-11 1469 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 |
This theorem depends on definitions: df-bi 116 df-tru 1319 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-ral 2398 df-int 3742 df-iin 3786 |
This theorem is referenced by: relint 4633 ixpintm 6587 |
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