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Mirrors > Home > ILE Home > Th. List > infeq1d | GIF version |
Description: Equality deduction for infimum. (Contributed by AV, 2-Sep-2020.) |
Ref | Expression |
---|---|
infeq1d.1 | ⊢ (𝜑 → 𝐵 = 𝐶) |
Ref | Expression |
---|---|
infeq1d | ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | infeq1d.1 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) | |
2 | infeq1 6972 | . 2 ⊢ (𝐵 = 𝐶 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) | |
3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1343 infcinf 6944 |
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-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-ext 2147 |
This theorem depends on definitions: df-bi 116 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2296 df-ral 2448 df-rex 2449 df-rab 2452 df-uni 3789 df-sup 6945 df-inf 6946 |
This theorem is referenced by: xrbdtri 11213 zsupssdc 11883 nnmindc 11963 nnminle 11964 lcmval 11991 lcmass 12013 odzval 12169 nninfdclemcl 12377 nninfdclemp1 12379 nninfdc 12382 bdmetval 13100 bdxmet 13101 qtopbasss 13121 |
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