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Mirrors > Home > MPE Home > Th. List > res0 | Structured version Visualization version Unicode version |
Description: A restriction to the empty set is empty. (Contributed by NM, 12-Nov-1994.) |
Ref | Expression |
---|---|
res0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-res 5126 | . 2 | |
2 | 0xp 5199 | . . 3 | |
3 | 2 | ineq2i 3811 | . 2 |
4 | in0 3968 | . 2 | |
5 | 1, 3, 4 | 3eqtri 2648 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wceq 1483 cvv 3200 cin 3573 c0 3915 cxp 5112 cres 5116 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-opab 4713 df-xp 5120 df-res 5126 |
This theorem is referenced by: ima0 5481 resdisj 5563 smo0 7455 tfrlem16 7489 tz7.44-1 7502 mapunen 8129 fnfi 8238 ackbij2lem3 9063 hashf1lem1 13239 setsid 15914 meet0 17137 join0 17138 frmdplusg 17391 psgn0fv0 17931 gsum2dlem2 18370 ablfac1eulem 18471 ablfac1eu 18472 psrplusg 19381 ply1plusgfvi 19612 ptuncnv 21610 ptcmpfi 21616 ust0 22023 xrge0gsumle 22636 xrge0tsms 22637 jensen 24715 egrsubgr 26169 0grsubgr 26170 pthdlem1 26662 0pth 26986 1pthdlem1 26995 eupth2lemb 27097 resf1o 29505 gsumle 29779 xrge0tsmsd 29785 esumsnf 30126 dfpo2 31645 eldm3 31651 rdgprc0 31699 zrdivrng 33752 eldioph4b 37375 diophren 37377 ismeannd 40684 psmeasure 40688 isomennd 40745 hoidmvlelem3 40811 aacllem 42547 |
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