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Related theorems GIF version |
| Description: Equality implies equivalence of equalities. |
| Ref | Expression |
|---|---|
| cleq2 | ⊢ (A = B → (C = A ↔ C = B)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cleq1 1107 | . 2 ⊢ (A = B → (A = C ↔ B = C)) | |
| 2 | cleqcom 1103 | . 2 ⊢ (C = A ↔ A = C) | |
| 3 | cleqcom 1103 | . 2 ⊢ (C = B ↔ B = C) | |
| 4 | 1, 2, 3 | 3bitr4g 428 | 1 ⊢ (A = B → (C = A ↔ C = B)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 = wceq 1091 |
| This theorem is referenced by: cleq2i 1111 cleq2d 1112 cleq12 1113 eleq1 1149 neeq2 1195 eqvinc 1407 alexeq 1409 ceqex 1410 eueq 1427 moeq3 1432 mo2icl 1434 sneq 1816 preqr1 1872 prel12 1875 dtru 1889 opthg 1899 euuni 1954 reuuni2 1956 ideqg 2126 solin 2145 so 2152 dfwe2 2187 ordequn 2331 findsg 2398 tfindsg 2402 resieq 2581 funsn 2690 fneq2 2719 foeq3 2786 f1oco 2816 tz6.12f 2844 tz6.12i 2847 funbrfv 2852 funopfvg 2854 fnfvbr 2855 fvelima 2859 fvopab2 2878 fvelrn 2883 f1fvf 2917 f1fveq 2918 isowe 2941 f1oweOLD 2944 rdgeq2 2973 caoprcan 3069 oawordeu 3157 eceqopreq 3249 2dom 3332 fundmen 3333 nneneq 3408 aceq5 3563 kmlem4 3583 kmlem14 3593 cardcf 3706 ltsopq 3869 ltexpq 3874 halfpq 3876 ltsosr 3997 map2psrpr 4014 ltsor 4055 axrecex 4079 addcant 4122 negeu 4124 subval 4134 subadd 4143 subaddt 4145 negcon1t 4167 subeq0t 4169 mulcant 4208 receu 4215 divval 4217 divmul 4218 divmult 4220 rec11 4262 redivcl 4274 nnleltp1t 4448 crut 4531 nn0ind 4612 sqe11t 4705 nn0opth2t 4726 replimt 4798 climuni 4884 hvsubeq0t 5040 hvsubaddt 5042 normsub0t 5085 hlimuni 5144 occllem5 5184 omls 5251 5oalem4 5547 pjclem4a 5652 pj3lem1 5658 strlem4 5695 jplem1 5701 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-gen 677 ax-17 925 ax-ext 1074 |
| This theorem depends on definitions: df-bi 128 df-an 198 df-cleq 1097 |