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Mirrors > Home > ILE Home > Th. List > opabssxp | Unicode version |
Description: An abstraction relation is a subset of a related cross product. (Contributed by NM, 16-Jul-1995.) |
Ref | Expression |
---|---|
opabssxp |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 108 |
. . 3
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2 | 1 | ssopab2i 4113 |
. 2
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3 | df-xp 4457 |
. 2
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4 | 2, 3 | sseqtr4i 3060 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 ax-ext 2071 |
This theorem depends on definitions: df-bi 116 df-nf 1396 df-sb 1694 df-clab 2076 df-cleq 2082 df-clel 2085 df-nfc 2218 df-in 3006 df-ss 3013 df-opab 3906 df-xp 4457 |
This theorem is referenced by: brab2ga 4526 dmoprabss 5744 ecopovsym 6402 ecopovtrn 6403 ecopover 6404 ecopovsymg 6405 ecopovtrng 6406 ecopoverg 6407 enqex 6973 ltrelnq 6978 enq0ex 7052 ltrelpr 7118 enrex 7337 ltrelsr 7338 ltrelre 7424 ltrelxr 7601 dvdszrcl 11133 |
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