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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 107 |
. . 3
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2 | 1 | ssopab2i 4034 |
. 2
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3 | df-xp 4371 |
. 2
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4 | 2, 3 | sseqtr4i 3033 |
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 104 ax-ia2 105 ax-ia3 106 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 |
This theorem depends on definitions: df-bi 115 df-nf 1391 df-sb 1687 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-in 2980 df-ss 2987 df-opab 3842 df-xp 4371 |
This theorem is referenced by: brab2ga 4435 dmoprabss 5611 ecopovsym 6261 ecopovtrn 6262 ecopover 6263 ecopovsymg 6264 ecopovtrng 6265 ecopoverg 6266 enqex 6601 ltrelnq 6606 enq0ex 6680 ltrelpr 6746 enrex 6965 ltrelsr 6966 ltrelre 7052 ltrelxr 7229 dvdszrcl 10334 |
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