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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 4422 |
. 2
|
| 3 | df-xp 4782 |
. 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 4194 df-xp 4782 |
| This theorem is used by: brab2ga 4852 dmoprabss 6173 ecopovsym 6910 ecopovtrn 6911 ecopover 6912 ecopovsymg 6913 ecopovtrng 6914 ecopoverg 6915 opabfi 7253 netap 7626 2omotaplemap 7629 2omotaplemst 7630 enqex 7733 ltrelnq 7738 enq0ex 7812 ltrelpr 7878 enrex 8110 ltrelsr 8111 ltrelre 8206 ltrelxr 8392 dvdszrcl 12583 releqgg 14081 eqgex 14082 prdsex 14278 prdsval 14279 prdsbaslemss 14280 aprval 14699 aprap 14706 aprprop 14709 lmfval 15436 pellexlem3 16248 lgsquadlemofi 16417 lgsquadlem1 16418 lgsquadlem2 16419 |
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