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| Mirrors > Home > MPE Home > Th. List > inteqi | Structured version Visualization version GIF version | ||
| Description: Equality inference for class intersection. (Contributed by NM, 2-Sep-2003.) |
| Ref | Expression |
|---|---|
| inteqi.1 | ⊢ 𝐴 = 𝐵 |
| Ref | Expression |
|---|---|
| inteqi | ⊢ ∩ 𝐴 = ∩ 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | inteqi.1 | . 2 ⊢ 𝐴 = 𝐵 | |
| 2 | inteq 4918 | . 2 ⊢ (𝐴 = 𝐵 → ∩ 𝐴 = ∩ 𝐵) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ ∩ 𝐴 = ∩ 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∩ cint 4915 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2156 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2745 df-cleq 2758 df-ral 3083 df-rex 3093 df-int 4916 |
| This theorem is used by: elintrab 4928 ssintrab 4939 intmin2 4943 intsng 4951 intexrab 5320 intabs 5322 op1stb 5456 dfiin3g 5962 op2ndb 6231 ordintdif 6416 knatar 7361 uniordint 7802 oawordeulem 8541 oeeulem 8589 naddov3 8669 iinfi 9379 dfttrcl2 9695 tcsni 9712 rankval2 9792 rankval3b 9800 cf0 10244 cfval2 10254 cofsmo 10263 isf34lem4 10371 isf34lem7 10373 sstskm 10837 dfnn3 12257 trclun 15062 cycsubg 19289 efgval2 19804 00lsp 21117 alexsublem 24216 noextendlt 27848 nosepne 27859 nosepdm 27863 nosupbnd2lem1 27894 noinfbnd2lem1 27909 noetasuplem4 27915 bday0 28019 intimafv 33071 dynkin 34570 rankval2b 35505 tz9.1regs 35559 imaiinfv 43456 elrfi 43457 onuniintrab 43985 naddov4 44142 naddwordnexlem4 44160 harval3 44296 relintab 44341 dfid7 44370 clcnvlem 44381 dfrtrcl5 44387 dfrcl2 44432 aiotajust 47853 dfaiota2 47855 ipolub0 49802 |
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