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| Mirrors > Home > ILE Home > Th. List > enrex | Unicode version | ||
| Description: The equivalence relation for signed reals exists. (Contributed by NM, 25-Jul-1995.) |
| Ref | Expression |
|---|---|
| enrex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | npex 7841 |
. . . 4
| |
| 2 | 1, 1 | xpex 4891 |
. . 3
|
| 3 | 2, 2 | xpex 4891 |
. 2
|
| 4 | df-enr 8094 |
. . 3
| |
| 5 | opabssxp 4849 |
. . 3
| |
| 6 | 4, 5 | eqsstri 3280 |
. 2
|
| 7 | 3, 6 | ssexi 4271 |
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-in1 623 ax-in2 624 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-14 2212 ax-ext 2220 ax-coll 4246 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-iinf 4735 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-iom 4738 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-f1 5382 df-fo 5383 df-f1o 5384 df-fv 5385 df-qs 6813 df-ni 7672 df-nqqs 7716 df-inp 7834 df-enr 8094 |
| This theorem is used by: addsrpr 8113 mulsrpr 8114 ltsrprg 8115 0r 8118 1sr 8119 m1r 8120 addclsr 8121 mulclsr 8122 recexgt0sr 8141 prsrcl 8152 ltpsrprg 8171 mappsrprg 8172 suplocsrlemb 8174 pitonnlem2 8215 pitonn 8216 pitore 8218 recnnre 8219 |
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