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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 4920 | . 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 4917 |
| 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 4918 |
| This theorem is used by: elintrab 4930 ssintrab 4941 intmin2 4945 intsng 4953 intexrab 5322 intabs 5324 op1stb 5458 dfiin3g 5964 op2ndb 6233 ordintdif 6419 knatar 7368 uniordint 7809 oawordeulem 8548 oeeulem 8596 naddov3 8676 iinfi 9387 dfttrcl2 9703 tcsni 9720 rankval2 9800 rankval3b 9808 cf0 10252 cfval2 10262 cofsmo 10271 isf34lem4 10379 isf34lem7 10381 sstskm 10845 dfnn3 12265 trclun 15077 cycsubg 19310 efgval2 19825 00lsp 21139 alexsublem 24238 noextendlt 27870 nosepne 27881 nosepdm 27885 nosupbnd2lem1 27916 noinfbnd2lem1 27931 noetasuplem4 27937 bday0 28041 intimafv 33093 dynkin 34589 rankval2b 35517 tz9.1regs 35571 imaiinfv 43465 elrfi 43466 onuniintrab 43994 naddov4 44151 naddwordnexlem4 44169 harval3 44305 relintab 44350 dfid7 44379 clcnvlem 44390 dfrtrcl5 44396 dfrcl2 44441 aiotajust 47862 dfaiota2 47864 ipolub0 49811 |
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