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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 4910 | . 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 4907 |
| 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 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-ral 3078 df-rex 3088 df-int 4908 |
| This theorem is used by: elintrab 4920 ssintrab 4931 intmin2 4935 intsng 4943 intexrab 5308 intabs 5310 op1stb 5440 dfiin3g 5951 op2ndb 6221 ordintdif 6407 knatar 7359 uniordint 7804 oawordeulem 8546 oeeulem 8594 naddov3 8674 iinfi 9393 dfttrcl2 9709 tcsni 9726 rankval2 9808 rankval2b 9816 rankval3b 9817 cf0 10309 cfval2 10319 cofsmo 10328 isf34lem4 10436 isf34lem7 10438 sstskm 10908 dfnn3 12330 trclun 15147 cycsubg 19403 efgval2 19918 00lsp 21236 alexsublem 24343 noextendlt 28008 nosepne 28019 nosepdm 28023 nosupbnd2lem1 28054 noinfbnd2lem1 28069 noetasuplem4 28075 bday0 28179 intimafv 33286 dynkin 34782 tz9.1regs 35775 imaiinfv 43657 elrfi 43658 onuniintrab 44186 naddov4 44343 naddwordnexlem4 44361 harval3 44497 relintab 44542 dfid7 44571 clcnvlem 44582 dfrtrcl5 44588 dfrcl2 44633 aiotajust 48098 dfaiota2 48100 ipolub0 50044 |
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