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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 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 |
. . 3
| |
| 2 | 1 | ssopab2i 4420 |
. 2
|
| 3 | df-xp 4780 |
. 2
| |
| 4 | 2, 3 | sseqtrri 3283 |
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-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-in 3226 df-ss 3233 df-opab 4193 df-xp 4780 |
| This theorem is used by: brab2ga 4850 dmoprabss 6170 ecopovsym 6905 ecopovtrn 6906 ecopover 6907 ecopovsymg 6908 ecopovtrng 6909 ecopoverg 6910 opabfi 7247 netap 7620 2omotaplemap 7623 2omotaplemst 7624 enqex 7727 ltrelnq 7732 enq0ex 7806 ltrelpr 7872 enrex 8104 ltrelsr 8105 ltrelre 8200 ltrelxr 8386 dvdszrcl 12559 releqgg 14023 eqgex 14024 prdsex 14172 prdsval 14173 prdsbaslemss 14174 aprval 14591 aprap 14598 aprprop 14601 lmfval 15294 pellexlem3 16093 lgsquadlemofi 16195 lgsquadlem1 16196 lgsquadlem2 16197 |
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