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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 4909 | . 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 1569 ∩ cint 4906 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-ral 3077 df-rex 3087 df-int 4907 |
| This theorem is used by: elintrab 4919 ssintrab 4930 intmin2 4934 intsng 4942 intexrab 5307 intabs 5309 op1stb 5439 dfiin3g 5950 op2ndb 6228 ordintdif 6414 knatar 7367 uniordint 7815 oawordeulem 8565 oeeulem 8613 naddov3 8693 iinfi 9412 dfttrcl2 9728 tcsni 9745 rankval2 9830 rankval2b 9838 rankval3b 9839 cf0 10331 cfval2 10341 cofsmo 10350 isf34lem4 10458 isf34lem7 10460 sstskm 10930 dfnn3 12352 trclun 15172 cycsubg 19428 efgval2 19943 00lsp 21261 alexsublem 24368 noextendlt 28031 nosepne 28042 nosepdm 28046 nosupbnd2lem1 28077 noinfbnd2lem1 28092 noetasuplem4 28098 bday0 28202 intimafv 33351 dynkin 34846 tz9.1regs 35858 imaiinfv 43797 elrfi 43798 onuniintrab 44321 naddov4 44478 naddwordnexlem4 44496 harval3 44632 relintab 44677 dfid7 44705 clcnvlem 44716 dfrtrcl5 44722 dfrcl2 44767 aiotajust 48247 dfaiota2 48249 ipolub0 50199 |
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