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Mirrors > Home > ILE Home > Th. List > sylan9ssr | Unicode version |
Description: A subclass transitivity deduction. (Contributed by NM, 27-Sep-2004.) |
Ref | Expression |
---|---|
sylan9ssr.1 | |
sylan9ssr.2 |
Ref | Expression |
---|---|
sylan9ssr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylan9ssr.1 | . . 3 | |
2 | sylan9ssr.2 | . . 3 | |
3 | 1, 2 | sylan9ss 3080 | . 2 |
4 | 3 | ancoms 266 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wss 3041 |
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-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-in 3047 df-ss 3054 |
This theorem is referenced by: intssuni2m 3765 |
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