| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > 3eqtri | GIF version | ||
| Description: An inference from three chained equalities. (Contributed by NM, 29-Aug-1993.) |
| Ref | Expression |
|---|---|
| 3eqtri.1 | ⊢ 𝐴 = 𝐵 |
| 3eqtri.2 | ⊢ 𝐵 = 𝐶 |
| 3eqtri.3 | ⊢ 𝐶 = 𝐷 |
| Ref | Expression |
|---|---|
| 3eqtri | ⊢ 𝐴 = 𝐷 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3eqtri.1 | . 2 ⊢ 𝐴 = 𝐵 | |
| 2 | 3eqtri.2 | . . 3 ⊢ 𝐵 = 𝐶 | |
| 3 | 3eqtri.3 | . . 3 ⊢ 𝐶 = 𝐷 | |
| 4 | 2, 3 | eqtri 2255 | . 2 ⊢ 𝐵 = 𝐷 |
| 5 | 1, 4 | eqtri 2255 | 1 ⊢ 𝐴 = 𝐷 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1496 ax-gen 1498 ax-4 1559 ax-17 1575 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 |
| This theorem is referenced by: csbid 3149 un23 3382 in32 3437 dfrab2 3500 difun2 3593 if0ab 3627 tpidm23 3797 unisn 3935 dfiunv2 4032 uniop 4377 suc0 4537 unisuc 4539 iunsuc 4546 xpun 4816 dfrn2 4948 dfdmf 4954 dfrnf 5003 res0 5047 resres 5055 xpssres 5078 dfima2 5108 imai 5123 ima0 5126 imaundir 5181 xpima1 5214 xpima2m 5215 dmresv 5226 rescnvcnv 5230 dmtpop 5243 rnsnopg 5246 resdmres 5259 dmmpt 5263 dmco 5276 co01 5282 fpr 5871 fmptpr 5881 fvsnun2 5887 mpo0 6131 dmoprab 6142 rnoprab 6144 ov6g 6200 1st0 6351 2nd0 6352 dfmpo 6432 algrflem 6438 dftpos2 6505 tposoprab 6524 tposmpo 6525 tfrlem8 6562 frecsuc 6651 df2o3 6675 sbthlemi5 7244 sup00 7307 casedm 7390 djudm 7409 axi2m1 8206 2p2e4 9381 numsuc 9740 numsucc 9766 decmul10add 9795 5p5e10 9797 6p4e10 9798 7p3e10 9801 xnegmnf 10181 pnfaddmnf 10202 fz0tp 10478 fz0to3un2pr 10479 fzo0to2pr 10585 fzo0to3tp 10586 fzo0to42pr 10587 0tonninf 10826 1tonninf 10827 inftonninf 10828 sq4e2t8 11023 i4 11028 fac1 11116 fac3 11119 abs0 11768 absi 11769 trirecip 12212 geoihalfsum 12233 esum 12373 tan0 12442 ef01bndlem 12467 3dvds 12575 3dvdsdec 12576 3dvds2dec 12577 3lcm2e6woprm 12808 6lcm4e12 12809 gcdmodi 13144 karatsuba 13153 ballotfilem2 13172 ballotfilemth 13225 ennnfonelem1 13242 ndxarg 13319 setsfun 13331 setsfun0 13332 txbasval 15244 cnmpt1st 15265 cnmpt2nd 15266 dvmptidcn 15691 cos2pi 15781 tan4thpi 15818 sincos6thpi 15819 sqrt2cxp2logb9e3 15952 2lgslem3c 16080 2lgslem3d 16081 012of 16879 2o01f 16880 pwf1oexmid 16885 isomninnlem 16926 iswomninnlem 16946 ismkvnnlem 16949 |
| Copyright terms: Public domain | W3C validator |