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Mirrors > Home > ILE Home > Th. List > csbeq1d | GIF version |
Description: Equality deduction for proper substitution into a class. (Contributed by NM, 3-Dec-2005.) |
Ref | Expression |
---|---|
csbeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
csbeq1d | ⊢ (𝜑 → ⦋𝐴 / 𝑥⦌𝐶 = ⦋𝐵 / 𝑥⦌𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | csbeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | csbeq1 3006 | . 2 ⊢ (𝐴 = 𝐵 → ⦋𝐴 / 𝑥⦌𝐶 = ⦋𝐵 / 𝑥⦌𝐶) | |
3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → ⦋𝐴 / 𝑥⦌𝐶 = ⦋𝐵 / 𝑥⦌𝐶) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1331 ⦋csb 3003 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-sbc 2910 df-csb 3004 |
This theorem is referenced by: csbidmg 3056 csbco3g 3058 fmptcof 5587 mpomptsx 6095 dmmpossx 6097 fmpox 6098 fmpoco 6113 xpf1o 6738 summodclem3 11149 summodclem2a 11150 summodc 11152 zsumdc 11153 fsum3 11156 sumsnf 11178 fsumcnv 11206 fisumcom2 11207 fsumshftm 11214 fisum0diag2 11216 prodmodclem3 11344 prodmodclem2a 11345 prodmodc 11347 ctiunctlemu1st 11947 ctiunctlemu2nd 11948 ctiunctlemudc 11950 ctiunctlemfo 11952 |
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