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| Description: An equality transitivity inference. |
| Ref | Expression |
|---|---|
| eqtr2.1 |
|
| eqtr2.2 |
|
| Ref | Expression |
|---|---|
| eqtr2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqtr2.1 |
. . 3
| |
| 2 | eqtr2.2 |
. . 3
| |
| 3 | 1, 2 | eqtr 1495 |
. 2
|
| 4 | 3 | eqcomi 1479 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 3eqtrr 1500 3eqtr4r 1506 dfun3 2246 symdif1 2265 dfsn2 2420 prprc1 2452 unidif0 2739 abssexg 2747 epfrc 2933 xpindi 3270 xpindir 3271 dmcnvcnv 3336 rncnvcnv 3337 dfrn4 3492 co01 3509 tz7.44-2 3929 oarec 4196 sbthlem8 4454 mapenlem2 4490 unifiOLD 4557 fiint 4559 fiintOLD 4560 fodomfiOLD 4566 trcl 4645 rankxplim2 4713 eqneg 5804 zeot 6199 seq1seq0t 6544 sqrlem11 6683 crne0 6739 crrecz 6741 ipcn 6790 abslem2i 6908 bcpasc2 6967 binomlem6 7071 isumshft2 7205 ege2lem2 7328 ege2le3lem2 7329 efaddlem6 7343 efaddlem16 7353 efge1 7401 efge1p 7402 efcnlem2 7420 sin01bndlem1 7467 ruclem10 7519 ruclem11 7520 ismeti 7802 0met 7825 cnmetba 7903 remetba 7909 iscau 7936 xplmi 7973 xplmi2 7974 xplm 7975 xpcn 7976 oprcn 7977 bopcnlem3 7983 bopcn 7985 fsumcnlem 7989 abscn 8343 ajfval 8469 ip1ilem 8485 ipasslem10 8499 sincos4thpi 8710 cosh111lem1 8714 pilog 8768 normlem6 8981 dfhnorm2 8988 norm3dif 9014 hhsssh2 9140 occllem1 9173 projlem4 9189 projlem18 9203 pjthlem1 9219 h1de2 9476 spansnj 9591 pjnel 9668 lnopunilem1 9935 lnophmlem2 9942 pjclem1 10123 mdslmd3 10259 atabs 10328 ghomsn 10388 cayleylem3 10411 cmphmp 10521 1cat 10692 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 963 ax-17 971 ax-4 973 ax-5o 975 ax-ext 1459 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-cleq 1469 |