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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 4913 | . 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 4910 |
| 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 2155 ax-ext 2734 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-ral 3079 df-rex 3089 df-int 4911 |
| This theorem is used by: elintrab 4923 ssintrab 4934 intmin2 4938 intsng 4946 intexrab 5315 intabs 5317 op1stb 5451 dfiin3g 5957 op2ndb 6227 ordintdif 6413 knatar 7364 uniordint 7804 oawordeulem 8545 oeeulem 8593 naddov3 8673 iinfi 9391 dfttrcl2 9707 tcsni 9724 rankval2 9804 rankval3b 9812 cf0 10256 cfval2 10266 cofsmo 10275 isf34lem4 10383 isf34lem7 10385 sstskm 10855 dfnn3 12275 trclun 15091 cycsubg 19342 efgval2 19857 00lsp 21171 alexsublem 24276 noextendlt 27913 nosepne 27924 nosepdm 27928 nosupbnd2lem1 27959 noinfbnd2lem1 27974 noetasuplem4 27980 bday0 28084 intimafv 33191 dynkin 34686 rankval2b 35614 tz9.1regs 35668 imaiinfv 43546 elrfi 43547 onuniintrab 44075 naddov4 44232 naddwordnexlem4 44250 harval3 44386 relintab 44431 dfid7 44460 clcnvlem 44471 dfrtrcl5 44477 dfrcl2 44522 aiotajust 47980 dfaiota2 47982 ipolub0 49926 |
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